Management & Staff


John Sanbrailo

Executive Director

Mr. Sanbrailo has been at the helm of PADF since 1999. He has over 40 years of experience managing international development programs and disaster assistance with funding from USAID, the World Bank, the Inter-American Development Bank, corporate, and other bilateral and multilateral sources.


Kristan Beck

Senior Director of Finance and Administration

Ms. Beck is an experienced non-profit executive manager with 25 years of experience. At PADF, she oversees all aspects of financial management, auditing, contracting, procurement, human resources, IT services, office administration functions, and serves as Chief Compliance Officer.


Caterina Valero

Senior Programs Director

Ms. Caterina Valero is currently Senior Programs Director for PADF from where she oversees general development projects and operations in the Latin America and Caribbean region.


Lance Leverenz

Director of Business Development

Mr. Leverenz leads PADF's Public Sector outreach to USAID, State Department, and other bilateral and multilateral donors. He has secured funding for many relief and development activities, including water and sanitation, emergency disaster response, human trafficking, and media freedom.


Hearly Mayr

Director of Communications and Public Affairs

Mr. Mayr oversees PADF's external and internal communications. In this role, he implements strategic communications for specific programs, coordinates communications with country and regional programs, and manages organizational branding, message development, and communication strategies.


Luisa Villegas

Program Director, South America

Ms. Villegas leads PADF's program implementation efforts in South America. As a seasoned development professional, she has extensive experience in designing, managing, and evaluating international development programs, including U.S. Government and private sector funded projects.