I wonder if there is some limit to the number of FFLs that can (or will) be issued for DC addresses.
They make it nearly impossible to get one. Here's the law in question
Furthermore, I've heard that the District has a policy of not allowing zoning to a business for the purpose of dealing in firearms. In fact, the address listed on the VPC's FFL is zoned for “residential/limited non-profit,” with no mention of a retail or business license.