Scandinavian Imports is a great shop in your neighborhood. Bogdan is a BMWNCC club sponsor . Reasonable prices and they are honest.
https://scandinavianimports.com/
RRT out in Sterling, VA is another one that is also a club sponsor. Great shop, knowledgeable and honest. They also race. We have a fun run tour starting here on March 30th, Dust Off Tour. BMWNCC .
https://rrtautomotive.com/
Further north is Autowerks in Fallston, MD . Very good at what they do. Honest reliable shop.
https://autowerkesinc.com/