2 units are fine. I just had a 4-unit condominium project approved in Belmont and know the process. It took 5 weeks from submission to FHA, not counting the time to assimilate the documents needed to submit the application. You should NOT submit an incomplete application but othewise it's not a real complex process. Anyone can do it through what HUD' (FHA's parent agency) calls HRAP. It's easier with 2-4 units than with larger developments. Contact the HUD Home Ownership Center by phone at 800-CALL FHA. They'll assist you in the process or ask your mortgage professional to do it for you.