Since you're a U.S. citizen living abroad, non-QM (non-qualified mortgage) programs designed for foreign nationals might be an ideal solution for your situation.

I've come across two different guys who just like many other are selling their programs and promising great success.  

DSCR programs vary, but getting away with putting less than 10% of either the purchase price or appraisal amount (whichever is lower) is rare.

Are you being paid by a local, state or federal program? 

The claim process has been started, and I'm looking at the SBA disaster loan programs.

Fanny Mae does have a 5% down owner occupied loan program for MF purchases.Any thoughts? 

I am happy to help with any questions you may have surrounding the Section 8 program, but it may differ market to market.

Given the recent pickup in activity, I thought this would be a good time to re-hash the agencies' small balance multifamily loan programs for future reference. 

HUD comes up with these figures by doing rent surveys with landlords, and I have participated in many of those surveys over the years at the request of the local administrator of the Section 8 program. 

I believe it's important to understand there are certainly examples of investors who succeed with the use of the section 8 rental program but there is generally an underlying thesis that leads to the success, not the section 8 program or "guaranteed rent"  in itself.