- Family law
- Child custody
- Child support
- Protective Orders
- Landlord and Tenant Law
- Real Estate
- Maryland, 2004
- University of Maryland, Baltimore, Class of 2003 J.D.
- University of Maryland, College Park, Class of 2000 B.S.
Associations and memberships
- Maryland State Bar Association, Inc.; Anne Arundel County Bar.
Robert Erdmann serves clients throughout Anne Arundel County, Montgomery County, Howard County, Prince Georges County, Calvert County, Charles County, Garrett County, Frederick County, Queen Anne County and Worcester County.