Staff & Board

Chief Executive Officer

Rob joined The Arc as its new Executive Director in June, 2015. He brings to The Arc a diverse background in insurance, banking, and nonprofit management. Most recently, he served as Chief Business Development Officer for Volunteers of America Chesapeake (VOA). In this role, he developed strategic efforts to provide resources for VOA programs focusing on the homeless, veterans in need, individuals with intellectual disabilities, and people with mental illness. He is also the founder of Mentoring to Manhood, a mentoring program for male students in Prince George’s County. The program has been recognized as one of the best small charities in the Greater Washington Area by the Catalogue for Philanthropy. Rob earned his Bachelors Degree in Business Administration from Howard University and his Masters Degree in Business Administration from the University of Maryland’s R.H. Smith School of Business. He and his wife, Jualecia, are proud parents of four children and reside in Upper Marlboro.

Chief Program Officer

Thalia Simpson-Clement joined The Arc Prince George’s County as its new Chief Program Officer in June 2022 and oversees all Developmental Disability Administration (DDA) programs. She has many years of valuable leadership experience in the developmental disability provider space.

Thalia has an extensive background in positive systems change and program development. As an early implementer of community-based services, she opened and operated the first 100% community-based program in the state of Virginia in 1991. It has been a highlight in her life to initiate and collaborate with systems, families and individuals in moving people from institutional living and working to living their best lives in the community. 

Thalia has served as an advocate and administrator in her previous role as Chief Operations Officer for St. John’s Community Services serving several states including: DC, DE, PA, TN and VA. She continues seeking to open doors and opportunities for people living in the community. She wholly supports “Employment First” initiatives and eagerly anticipates new opportunities and creative service options being launched by the ARC of Prince George’s County.

In addition to her work with people and families in the intellectual and developmental disability community, Thalia also has experience working in mental health and correctional systems. She received a Bachelor of Science in Administration of Justice, with a minor in Rehabilitative Services, from the Virginia Commonwealth University, and also holds a Master of Arts in Nonprofit Management from Notre Dame of Maryland University.

Thalia spends her leisure time with her husband and 2 adult children appreciating long walks, martial arts and her work with the Boy Scouts of America as a Merit Badge Counselor.

Chief of Staff

Ms. Henley is a seasoned human resources professional, with over 25 years of experience in the field. Ms. Henley leads The Arc’s Human Resources office, where she is responsible for employee relations, recruitment, organizational development, and benefits administration, to name a few. She also oversees the Business Operations and Quality Assurance departments. She is a dedicated resource to our nearly 700 employees working throughout Prince George’s County. Ms. Henley holds a bachelor’s degree in Business Administration and a Master’s degree in Organizational Development and Strategic Human Resources. She is also a certified human resources professional and is active in the human resources community. She enjoys spending time with her family, reading, and traveling in her free time.

Chief Development Officer

Lorraine’s expertise is in establishing development operations, annual funds, foundation relations and corporate partnerships. She also has extensive experience in proposal writing, training nonprofit boards, and creating diversified fundraising platforms. Lorraine is a Certified Fund Raising Executive who enjoys music, traveling, nurturing young people, cooking and training those in whatever she knows so they do it better. Lorraine earned her Bachelors Degree in Liberal Studies at the University of Delaware and completed her Masters Degree and doctoral coursework in Organizational Communication at Howard University.