David A. Greenberg

President & Chief Executive Officer

David A. Greenberg is the current President and Chief Executive Officer of The League. In this position, he is responsible for the overall success of The League. Prior to joining the team at The League, David has held numerous hospital administration positions, most recently at Mt. Washington Pediatric hospital in Baltimore, where he was a Vice President, responsible for ambulatory services. 

David holds a Master’s of Business Administration degree from Loyola College in Baltimore, and a Bachelor’s of Science in Nursing degree from the American University in Washington, D.C. He has been a Registered Nurse in the State of Maryland for more than 40 years. 

David is a graduate of the 2014 class of Leadership Maryland, 2011 Harry and Jeanette Weinberg Fellows Program, and the 2009 class of Leadership Baltimore County. He is currently a commissioner on the Baltimore City Mayor’s Commission on Disabilities, as well as the Baltimore County Commission on Disabilities. He serves on the boards of the Maryland Association of Community Services as well as the Rotary Club of Baltimore.

In 2014, David was awarded the Daily Record’s Most Admired CEO Award.

dgreenberg@leagueforpeople.org ; Ext. 303

Margretta "Margy" Ryan

Senior Vice President, Finance

Margy Ryan is currently the Senior Vice President of Finance at The League. In this position, she is responsible for the oversight of budgets, cash management, financial reporting and analysis as well as risk management areas. Prior to joining the team at The League, Margy was the Director of Administrative Services at Family and Children’s Services of Central Maryland, and the Chief Financial Officer at Tuerk House.


Margy holds a Bachelors of Science degree in Accounting with a minor in Business Administration from the University of Delaware. She has 40 years of experience, most of which were in the non-profit sector. She is also a Certified Public Accountant in the State of Maryland.


Margy is a graduate of the 2015 class of Leadership Baltimore County and she is an active volunteer at the Women’s Housing Coalition, where she mentors women with disabilities on fiscal and budget management to allow them to become more self-sufficient.

Mary Blake

Vice President, Human Resources and Compliance

Mary Blake is the current Vice President of Human Resources and Compliance at The League. In this position, She is responsible for managing all Human Resource functions and for the design, implementation and coordination of all quality, safety and compliance related activities. Prior to joining The League, Mary was the Senior Manager of the career center at Jewish Community Services. 

Mary holds a Bachelor’s of Science Degree in Business Management from the University of North Carolina at Wilmington. She has over thirty years of experience in human resources, non-profit management, disability advocacy, and quality assurance. 

Mary is certified through the Society of Human Resource Professionals as a Senior Certified Professional and is also a First Aid and CPR Instructor through the National Safety Council.

Renee Dash, MBA, MSN, RN

Vice President, Medical Programs and Chief Nursing Officer

Renée Dash is the current Vice President of Medical Programs and Chief Nursing Officer with The League. In this position, she directly oversees The Adult Medical Day program, Snyder Center for Aphasia Life Enhancement (SCALE), and the MS Day program. Prior to joining the team at The League, Renee was the Director of Quality Operations at Inovalon, Inc. 

Renée holds a Master’s Degree in Nursing Administration from the University of Maryland Baltimore, as well as an MBA from the University of Baltimore. She also received her Bachelor’s of Science degree in Nursing from Tuskegee University. Renée has 20 years of experience as a registered nurse with expertise in clinical quality assurance and operations management.

Renée currently serves on the Board of Directors for the Maryland Association of Adult Day Services.

Shiketa Jenkins, MA

Vice President, Workforce, Community and Youth Programs


Shiketa Jenkins is the current Vice President of Workforce, Community and Youth Programs with The League. In this position, she directly oversees The Workforce Development, Day Habilitation, and Youth Autism Services. Prior to joining the team at The League, Shiketa was the Director of Program Services at one of the local case management companies. 


Shiketa holds a Master’s and Bachelor’s degree in Applied Sociology from the University of Maryland, Baltimore County.  Shiketa has several years of experience serving the mental health and disability community.


Shiketa has also taught Sociology for 6 years at CCBC and more recently Howard Community College.

Rhonda Johnson

Vice President, Customer Relations

Rhonda Johnson is the current Vice President of Customer Relations for The League. In this position, she ensures all participant and customer relations are conducted with a focus on consumer advocacy and satisfaction. It is her responsibility to ensure that The League provides outstanding services and supports to our participants, community members and that staff providing direct support have the tools necessary to be successful in their roles.

Rhonda holds a Master Certification from Johns Hopkins University in Medical Billing and Coding, and has more than twenty years of non-profit management experience. 


Rhonda is passionate about the quality of care and services provided to all of those who are served by The League. 

Lauren Yankolonis

Vice President, Development

Lauren Yankolonis is the current Vice President of Development at The League. In this position, she provides strategic direction of and planning for the long term development and marketing program for The League. Prior to joining the team at The League, Lauren was Executive Director for the Arthritis Foundation in Maryland and Delaware. 

Lauren holds a Bachelor’s Degree in Mass Communications from Towson University. She brings more than thirteen years of “best practice” experience in the nonprofit field, focused on strategic planning, volunteer management, managing staff, fundraising and communications.

Lauren is a member of the Association of Fundraising Professionals, Maryland Chapter, and is a volunteer with Empower4Life in Baltimore County, serving families affected by homelessness in Baltimore County.

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