. - The exterior also had against the new tenants porch- 6 sandbags, with a winter sled, some random wire and plants growing in the sled with a kids bike leaning against it.

FHA will look at appraisal and be picky on mold/mildew, exposed wiring, Soffit issues, Incomplete flooring (Concrete not finished) Missing tiles and a few other things but keep in mind its also "All things" that are required to pass an appraial/inspection.My advice as a Banker to avoid issues is use a "Seasoned Realtor" and Banker plus walk the poperty and look for issues up front. 

What’s the best way for investors to explain complex financing strategies to listing agents without overwhelming them?

The lack of communication is concerning to me.

Do the inspection, communicate with the tenants, treat the unit and monitor regularly!

Only communicate with your tenant in writing. 

You should schedule several phone calls and have questions through email to evaluate their communication and response times.

The next step will be for here to wire funds for "mortgage insurance" or some other made up item. 

If there is no communication this sometimes gives them a kick in the pants to get in touch or a faster way to get possession back if they don't want an eviction either. 

The form reads Click on to expand:Prosecutors might file federal charges for bank fraud, loan and credit application fraud, wire fraud, or conspiracy to commit any of these crimes.