3% DP on SFH, Followed Shortly By 3.5% FHA?

[John C.]

Expanding on the title, the multifamily home market dried up in my desired zip codes recently. If I shift to buying a first-time homebuyer, 3% DP SFH (with the intention to owner occupy), then how long realistically would I have to wait to take advantage of a 3.5% DP FHA on a MF opportunity should one come across my desk?