Leadership

Michelle Zamarin serves as the Inspector General (IG) of the Washington Metropolitan Area Transit Authority. As the IG, Ms. Zamarin is the senior official responsible for audits, investigations, and oversight of WMATA’s activities and operations. The Office of Inspector General (OIG) provides leadership in promoting economy, efficiency, effectiveness, and integrity in WMATA’s programs, as well as identifying and preventing criminal fraud, waste, abuse, and gross employee misconduct.

Before her appointment as IG, Ms. Zamarin was a distinguished attorney and federal prosecutor whose career spans over two decades. In 2003, she joined the United States Attorney’s Office as an Assistant United States Attorney, where she investigated and prosecuted sex offenses, domestic violence, violent crimes, narcotics trafficking, fraud, and public corruption in both Superior Court and Federal Court. Ms. Zamarin’s leadership roles at the United States Attorney’s Office include Deputy Chief and Section Chief for various prosecutorial units. Ms. Zamarin’s background and legal experience include serving as a trial attorney at the U.S. Securities and Exchange Commission Enforcement Division, clerking on the 6th Circuit Court of Appeal, and practicing law in private practice at Skadden, Arps, Slate, Meagher, and Flom in D.C.

She holds a Juris Doctor degree from Boston University School of Law.

Rafael “Rico” Medina serves as the Deputy Inspector General (DIG) for Investigations of the Washington Metropolitan Area Transit Authority. As the DIG, Mr. Medina is the senior official responsible for investigations, cybercrimes and data analytics impacting WMATA’s activities and operations.

Mr. Medina’s career spans over three decades, starting as a Special Agent with the U.S. Air Force Office of Special Investigations. He later joined the federal Inspector General community, working for various OIGs specializing in financial crimes, bank fraud, procurement fraud, public corruption, and cybercrimes. Before his current assignment, he held various executive leadership roles at the U.S. Postal Service OIG where he served as Executive Special Agent in Charge, Deputy Assistant Inspector General and Deputy Chief Data Officer. In these roles, he directed investigative operations and data analytics initiatives throughout the United States as well as Puerto Rico and the US Virgin Islands. Throughout his career, he has exercised oversight over billions of dollars in federally funded programs, agency-generated revenue, and procurement expenditures, resulting in the identification and detection of billions of dollars in fraudulent activity.

He is a graduate of the University of Maryland.

Yamani Dole serves as the Deputy Inspector General for Audits & Evaluations of the Washington Metropolitan Area Transit Authority. Mr. Dole is the senior OIG official responsible for OIG audits and evaluations of WMATA programs and operations.

Mr. Dole’s leadership and auditing experience spans over twenty years, having held leadership positions in government and the private sector. Since joining WMATA OIG in 2018, Mr. Dole has served as an Audit Manager and Audit Director. His contributions to the mission of WMATA OIG have been instrumental in enhancing the effectiveness and efficiency of WMATA programs and operations. Prior to joining the OIG, Mr. Dole served as the Deputy Auditor to the Board at Fairfax County. His experience also includes the private sector leading audit teams through complex and challenging audits in the United States and Asia. Earlier in his career, he gained valuable financial expertise as a Financial Advisor at Merrill Lynch. He holds certifications as a Certified Internal Auditor, Certified Government Auditing Professional, and Certified Fraud Examiner.

He is a graduate of the University of Northern Florida.

Fernando Campoamor serves as the Counsel to the Inspector General of the Washington Metropolitan Area Transit Authority. In this role, he is the IG’s senior legal and policy adviser and provides legal support to the WMATA Office of Inspector General staff.

Mr. Campoamor has over two decades of experience as a trial lawyer and prosecutor, having tried dozens of criminal and civil trials. Mr. Campoamor started his legal career as a U.S. Department of Justice’s Civil Division Trial Attorney. Following his initial government service, Mr. Campoamor spent five years in private practice as a litigator handling complex civil litigation, internal investigations, and international arbitrations. In 2004, Mr. Campoamor returned to government service as an Assistant United States Attorney for the United States Attorney’s Office for the District of Columbia. There, he investigated and prosecuted narcotics trafficking, kidnappings, homicides, and national security offenses and served in leadership roles, including Deputy Section Chief. In 2019, he joined the U.S. Securities and Exchange Commission, where he was responsible for litigating and trying complex federal securities cases in federal district courts.

Mr. Campoamor graduated from Georgetown University’s School of Foreign Service and holds a Juris Doctor degree from Duke University School of Law.