Javascript is not enabled.

Javascript must be enabled to use this site. Please enable Javascript in your browser and try again.

Skip to content
Content starts here
CLOSE ×
Search
Leaving AARP.org Website

You are now leaving AARP.org and going to a website that is not operated by AARP. A different privacy policy and terms of service will apply.

Legal Advocacy Team

William A. Rivera, Senior Vice President of Litigation discusses the class action lawsuit AARP Foundation filed after this home care worker’s pay was cut and she was illegally denied overtime.

 

AARP Foundation attorneys advocate in courts nationwide for the rights of people 50 and older, addressing diverse legal issues that affect their daily lives and assuring that they have a voice in the judicial system.

The Team

William (Bill) Alvarado Rivera

William (Bill) Alvarado Rivera is senior vice president of litigation at AARP Foundation, where he leads and provides strategic direction for the Foundation's legal advocacy work.

Bill manages a team of litigators who advocate nationwide for the rights of people age 50 and older, addressing diverse legal issues that affect their daily lives and ensuring that they have a voice in the judicial system.  The team litigates and files amicus briefs in cases involving, among other things, employment discrimination; employee benefits; housing; consumer issues, including financial fraud and utility issues; health and long-term care; and public benefits.

Bill has over 20 years of experience in law and public policy, specializing in litigation and policy issues affecting families with low income. Bill started his career as a trial attorney in the Civil Division of the U.S. Department of Justice under the Attorney General's Honors Program. He later served as senior advisor to the commissioner and acting deputy commissioner of the Federal Office of Child Support Enforcement.

Prior to joining the Foundation, Bill served as deputy associate general counsel and chief of litigation for the Children, Families, and Aging Division of the U.S. Department of Health and Human Services (HHS) Office of the General Counsel. Among other things, he led HHS’s legal team in handling matters arising under the Temporary Assistance for Needy Families, Foster Care, Child Support, Head Start, Unaccompanied Alien Children, and Refugee Resettlement programs. Bill also was the lead attorney for aging and disability programs funded by the HHS Administration for Community Living.

Bill received his undergraduate degree with honors in public policy and American Institutions from Brown University and his law degree from Stanford Law School. He spent a year as a Fulbright Scholar in Sweden, where he conducted research on ethnography and social welfare policy at the University of Stockholm. Bill has served on a number of nonprofit boards, including as president of the Hispanic Bar Association of the District of Columbia in 2011.

Contact Bill: warivera@aarp.org

Kelly Bagby

Kelly Bagby is vice president of litigation, managing AARP Foundation's legal advocacy work related to health, hunger, housing and human services. Kelly specializes in civil rights, disability rights, health law and other public interest areas, with an emphasis on litigation. She has been a part of the health team since 2008. Kelly has litigated a range of discrimination and public interest cases in federal and state courts. Prior to joining the Foundation, she worked for the Office of Counsel for the Office of Inspector General for the United States Department of Health and Human Services. From 1998 to 2004, she was the litigation director at Disability Rights DC and worked at Disability Rights Maryland before that.

Kelly has served as class counsel in a number of cases that have permitted people to age in place in the community rather than be forced to have their long-term services provided in nursing facilities, including Darling v. Douglas (Cota v. Maxwell-Jolly), 688 F. Supp. 2d 980 (N.D. Cal. 2010), and Brown v. District of Columbia (Case No. 10-02250). Kelly was co-counsel in several cases in which nursing facility residents were administered psychotropic medications without informed consent. She has worked on patient dumping for the past several years and is counsel to a victim of dumping in a high-profile case in California. Kelly files amicus briefs in state and federal courts that relate to ensuring that victims of abuse and neglect are able access the judicial system for redress. 

Contact Kelly: kbagby@aarp.org

Louis Lopez

Louis Lopez is vice president of litigation at AARP Foundation, where his portfolio includes economic justice, employment and consumer protection. Louis has a long history of employment law and policy experience, having served in executive, leadership, investigative and litigation roles where he oversaw complex cases and matters. Prior to joining AARP, Foundation, he served in the Justice Department’s Civil Rights Division — first as deputy chief of the Employment Litigation Section and later as chief (SES) of the Policy and Strategy Section. Louis also served in other government positions, including as associate special counsel of Investigation and Prosecution (SES) at the U.S. Office of Special Counsel; legal advisor to the chair of the U.S. Equal Employment Opportunity Commission; and counsel to the equal employment opportunity officer at the Federal Bureau of Investigation. He also worked in private practice at law firms and as director of Human Resources, Facilities, and Security for Washington Post Digital. For eight years, Louis served as an adjunct professor at Georgetown Law School, where he taught advanced courses on labor and employment law. He is a graduate of the University of Kansas (bachelor's degree in journalism), Harvard Law School, and Georgetown Law School (master of laws degree in labor and employment law). Louis currently serves as the chair of the American Bar Association’s Commission on Hispanic Legal Rights and Responsibilities.

Contact Louis: llopez@aarp.org

Genevieve Odile Fontan

Genevieve Odile Fontan comes to AARP Foundation with years of social justice experience. Before joining the Foundation, she was a solo-practitioner pro bono attorney through the DC Bar Pro Bono Center’s referral program. Among those cases, she prevailed at a trial that expanded the protection of Notice to Quit requirements for a subtenant in that case, further moving the needle in existing persuasive authority. Prior to that experience, Genevieve spent several years in New York City at Urban Justice Center, where she defended tenants in eviction cases as part of the city’s 2017 rollout of Right to Counsel. She also has experience in plaintiff-side securities fraud class actions in Washington, D.C., and civil rights matters from her time at the ACLU in San Francisco.

AARP Foundation 2024 Supreme Court Preview

The Supreme Court often hears cases affecting the lives of people over 50. Read our review of key cases coming before the Court this year and likely to come in the future.

  

 

Genevieve is a graduate of Stanford Law School. She also received a master’s degree in Géographie Historique from Paris IV La Sorbonne (now Sorbonne Université) while living in Paris. Because of her Californian origin, she based her Paris master’s research on an ethnogeographic study of legalized home winemaking in San Francisco vs. Los Angeles under the Volstead Act during Prohibition. Her bachelor’s degree is from the University of California at Berkeley. She is a member of the New York and D.C. bars, as well as the D.C. Hispanic Bar Association. She finds justice litigation to be the perfect mix of her love of history, community and change.

Contact Genevieve: gfontan@aarp.org

Sam Gerleman

Samantha (Sam) Gerleman joined AARP Foundation after serving as a civil rights and employment fellow at Cohen Milstein Sellers & Toll PLLC where she challenged discriminatory housing and workplace practices through impact litigation. Prior to Cohen Milstein, Sam was a Stanford law fellow at Disability Rights Maryland, where she provided legal representation to youth with heightened behavioral needs and laid the groundwork for litigation and legislative efforts aimed at preventing youth with disabilities from entering Department of Social Services custody. Sam received her bachelor's degree, summa cum laude, in ethics and public policy, sociology and philosophy from the University of Iowa, where she graduated with university honors and honors in philosophy. She received her law degree with high pro bono distinction from Stanford Law School, where she was integrally involved in numerous student organizations as a law student, including the SLS First Generation Professionals (academic chair, mentor, cofounder), Law Students for Disability Rights (co-president), Stanford Lawyering for Reproductive Justice (outreach vice president), and Stanford’s Social Security Disability Pro Bono Project (student director). Sam was named one of D.C.’s “Top 40 Under 40” by The National Trial Lawyers.

Contact Sam: sgerleman@aarp.org

Dean Graybill

Dean Graybill is a lead attorney at AARP Foundation and has served over three decades the public interest realm. As a manager and litigator at the Federal Trade Commission, he oversaw enforcement actions against telemarketing schemes targeting seniors (e.g., Operation Senior Sentinel); brought cases against bogus health supplement sellers; and participated in antitrust matters involving high gasoline and health care prices. In a prior stint at the Foundation, he served six years as vice president of litigation. Dean is a graduate of the University of Pennsylvania Law School.   

Contact Dean: dgraybill@aarp.org

Maame Gyamfi

Maame Gyamfi is a senior lead attorney at AARP Foundation. Maame is a health care expert who advocates nationwide for the rights of older adults with low to moderate income, addressing diverse issues that affect their daily lives and ensuring that they have a voice in the judicial system. She works on matters involving health law, civil rights, elder abuse, disability rights, consumer protection, and other public interest areas. Prior to coming to AARP Foundation, Maame was senior counsel at the Office of the Inspector General, U.S. Department of Health and Human Services, where she worked on health care fraud and compliance matters. She also litigated criminal and civil cases as a special assistant United States attorney for the U.S. District Courts of the Southern District of Florida and the Eastern District of New York. Maame is a graduate of Georgetown University Law Center and the University of California at Berkeley.

Contact Maame: mgyamfi@aarp.org

Rachel N. Lokken

Rachel N. Lokken is an accomplished litigation attorney with extensive experience providing strategic representation to individual, corporate and public interest clients at the state and federal levels. Rachel’s legal practice has focused primarily on complex commercial litigation and business matters, appellate litigation, and constitutional compliance.

Rachel’s work ethic and dedication to her clients has led to her favorable litigation results and strategic settlements. Passionate about public interest work, she has a longstanding history of service as counsel in the areas of affordable housing for people with low to moderate income, child advocacy, music licensing, and domestic violence.

Rachel has served on the Supreme Court of New Jersey District X Fee Arbitration Committee as an appointed volunteer attorney and received her certificate in Diversity, Equity and Inclusion in the Workplace.

She received her law degree from the University of Michigan and her bachelor’s degree from Oberlin College.

Rachel is admitted in New Jersey and Illinois. She is currently supervised by members of the D.C. bar.

Contact Rachel: rlokken@aarp.org

Ali Naini

Ali Naini joined AARP Foundation after a career in the District of Columbia Attorney General’s Office and the nonprofit organization Mobilization for Justice (formerly “MFY”). Ali, who speaks English, Farsi and Turkish, has shown a keen interest in public policy since his early days at the University of Virginia. He researched microfinancing in Cairo and later worked with the Harlem Children’s Zone on health, financial and housing projects. In law school, he served as managing editor of the George Washington Law Review. He then earned his litigation stripes in a three-year stint at the D.C. Attorney General’s Office. He won four of four jury trials and 21 of 24 court motions, handling a wide variety of litigation tasks. In 2016, he again chose public interest work, serving as senior staff attorney at MFY’s Foreclosure Prevention Project in New York City. There, he tirelessly represented clients facing loss of their homes, handled individual cases, lobbied for reforms, and first-chaired a trial. 

Contact Ali: anaini@aarp.org

Lauren Naylor

Lauren Naylor joined AARP Foundation after seven years at a plaintiff-side employment law firm representing federal and private sector employees in complex discrimination and retaliation matters. Lauren has represented employees before administrative bodies, including the Equal Employment Opportunity Commission, and in state and federal courts. Lauren holds a bachelor's degree in political science and public administration from Rhode Island College. She earned her law degree from George Washington University Law School, where she received the Ogden W. Fields Graduate Award for Excellence in Labor Law.

Contact Lauren: lnaylor@aarp.org

Julie Nepveu

Julie Nepveu is a senior staff attorney at AARP Foundation. She advances the interests of older people nationwide in the areas of access to courts, consumer protection, mortgage and reverse mortgage servicing and foreclosure defense, fair housing, disability rights, and public utilities. Her work includes litigating cases, filing amicus briefs, drafting comments on proposed federal regulation and legislation, and providing support to AARP state office staff. Julie previously worked as staff attorney at the Lawyers’ Committee for Civil Rights Under Law in the Housing and Community Development Project. Prior to that, she represented subsidized tenants with low income at Legal Services of Northern Virginia. She also served as a judicial law clerk at the U.S. Claims Court to the Hon. Thomas J. Lydon. Julie earned her bachelor's degree from the University of Vermont and her law degree from the University of Maine School of Law. The Maine State Bar Association honored her with its Pro Bono Award in 1991.

Contact Julie: jnepveu@aarp.org

Rebecca Rodgers

Rebecca Rodgers joined AARP Foundation after 10 years at Disability Rights Advocates, where she litigated complex disability rights class actions related to access to health care, emergency preparedness, transportation, and public programs and services. Her representative cases include lawsuits against the Metropolitan Transportation Authority that challenged their failure to make the New York City subway system accessible for people with mobility disabilities. Rebecca received her law degree from The George Washington University Law School and her bachelor's degree in art history from The George Washington University. She currently serves as the chair of the New York City Bar Association’s Disability Law Committee. 

Contact Rebecca: rrodgers@aarp.org

Sébastien Monzón Rueda

Sébastien Monzón Rueda came to AARP Foundation after four years as a staff attorney in the Tenant Advocacy and Support Practice at Legal Counsel for the Elderly, where he represented older adults with low to moderate income in housing-related cases before the Superior Court of the District of Columbia. He also litigated reasonable accommodation cases and discrimination claims before administrative bodies, such as the D.C. Housing Authority and the Office of Administrative Hearings. Sébastien received his bachelor's degree from the University of British Columbia and his law degree, cum laude, from the University of the District of Columbia David A. Clarke School of Law. He clerked for the Honorable Tyrona De Witt and the Honorable Diane Lepley at the Superior Court of the District of Columbia. Sébastien is a board member of the Washington Council of Lawyers — the public interest bar association for D.C. — and serves as co-chair of its Advocacy Committee. He is fluent in Spanish.

Contact Sébastien: smonzonrueda@aarp.org

Stefan Shaibani

Stefan Shaibani is an alumnus of Stanford Law School, a former law clerk at the U.S. Court of Appeals for the Ninth Circuit, and a former trial attorney at the U.S. Department of Justice, Commercial Litigation Branch. Stefan is an attorney at AARP Foundation, where he represents plaintiffs in disability, consumer and employment class actions.

Prior to joining AARP Foundation, Stefan operated a solo and small firm practice for 16 years representing plaintiffs in automobile negligence, premises liability, first-party insurance, and business tort cases in the D.C. metropolitan area. In this capacity, he conducted bench and jury trials, depositions, and mediations, and he worked with expert witnesses in fields such as orthopedics, neurosurgery, neurology, pathology, oncology, vocational rehabilitation, economics, accident reconstruction, and premises security. Stefan has represented many clients who sustained harms and losses, including older adults with low income and people experiencing homelessness, due to negligence of individuals and corporations defended by casualty insurers.

Contact Stefan: sshaibani@aarp.org

Mary William

Before joining AARP Foundation, Mary William worked as a housing attorney, providing direct client services at both the Neighborhood Legal Services Program in Washington, D.C., and Mid-Minnesota Legal Aid in Minneapolis. She has represented defendants in eviction cases concerning nonpayment of rent and lease breaches. She also litigated affirmative cases on behalf of tenants who were locked out of their homes or seeking repairs. Prior to her work in housing litigation, Mary was an attorney at Rainbow Health (then known as JustUs Health) in St. Paul, Minnesota, where she represented clients appealing the denial of Social Security benefits. She received a bachelor's degree in international relations from the University of Rochester and a law degree from the University of Minnesota Law School.

Contact Mary: mwilliam@aarp.org

Vickie Williamson

Vickie Williamson joins AARP Foundation as a lead attorney with over two decades of experience as a litigator. She began her career at a legal services organization in New York City that represented people with HIV positive who had low income. Her work there encompassed an array of issues, including housing, immigration and benefits.

As she moved into private practice, Vickie represented tenants seeking to retain protected status in their apartments under the rent stabilization and rent control laws of New York City. She worked to include protections under those laws for domestic partners, as same-sex marriage had not yet been recognized in that jurisdiction, and sought to obtain reasonable accommodations for disabled tenants.

After several years practicing, Vickie chose to concentrate her career on protecting worker’s rights, recognizing that the ability to work and earn income is essential to people’s livelihood and trajectory of wealth throughout their lives. Over the past 20 years, Vickie has represented private sector, federal sector and congressional employees in matters involving discrimination, harassment and retaliation. She has litigated matters in an array of venues, including administrative agencies, federal agencies, state and federal courts across the country, and the Office of Congressional Workplace Rights.

In private practice, Vickie’s most recent position was as a partner at a plaintiff-side employment law practice. Immediately prior, Vickie was a staff attorney at the Office of Employee Advocacy at the United States House of Representatives, where she worked to protect the rights of congressional staffers, with an emphasis on obtaining protections for disabled staffers throughout the COVID-19 pandemic.

Vickie provides volunteer legal services with frequency, including Pandemic Legal, where she represents people who have developed COVID-related disabilities, and the Legal Network for Gender Equity, an arm of the National Women’s Law Center. She is also on the board for First Shift Justice Project, an organization that protects the rights of working parents in the DMV area. She is an active member of the National Employment Lawyer’s Association (NELA), as well as the Metropolitan Washington Lawyer’s Association (MWELA).

She received her bachelor’s degree from Florida International University and her law degree from the City University of New York School of Law, and she is admitted to practice in New York and the District of Columbia.

When she’s not working, Vickie spends time with her two teenage children and her beloved dog, Murphy.

Contact Vickie: vwilliamson@aarp.org

David Yellin

David Yellin joined AARP Foundation as a lead attorney with over a decade of litigation experience at all levels.  Most recently, David he spent six years working at Rising for Justice, where he provided direct representation to hundreds of clients facing eviction and housing insecurity in the District of Columbia. He also and taught clinical students at Georgetown Law, The George Washington University Law School, and UDC Law School as director of the Housing Advocacy and Litigation Clinic. 

David also has worked on a variety of complex civil matters and white collar criminal defense matters at a litigation boutique in D.C. and at Fried, Frank, Harris, Shriver & Jacobson LLP in New York. In addition, he and has taught Evidence as an adjunct professor at the University of Maryland Francis King Carey School of Law. 

David spent two years clerking for Judge Paul W. Grimm in the United States District Court for the District of Maryland, in Greenbelt.   DavidHe received his bachelor’s degree, magna cum laude, from Colgate University, a master’s of Sciencedegree with honors in comparative politics from the London School of Economics and Political Science, and his J.Dlaw degree, magna cum laude, from Georgetown University Law Center.  He David lives in Bethesda, Maryland, with his wife and two sons.

Contact David: dyellin@aarp.org

Unlock Access to AARP Members Edition

Join AARP to Continue

Already a Member?

AARP Foundation 2024 Supreme Court Preview

The Supreme Court often hears cases affecting the lives of people over 50. Read our review of key cases coming before the Court this year and likely to come in the future.