Baltimore City small multi family

[Colin Charles]

I recently viewed a SFH that I would like to purchase and convert to a 2 unit. The current zoning is R 6 (Low density rowhouse neighborhoods. Accommodates detached and semi-detached dwellings, rowhouse developments and multifamily developments. Limited non-residential)
uses. 

Does anyone have experience converting a SFH zoned R6 to a two unit property? I spoke to Baltimore city zoning and I was told I can't make the conversion because the property is zoned R6. Is this 100% correct? Thanks in advance for responding to my question.