What you are looking for is a non recourse loan, however don't expect 10% down payment and 75% ARV.

Warmly, - Adam  FHA mortgage insurance w/ 3.5% down is stuck for the life of the loan, eg you'd need to refi to drop it.There are conventional 3% and 5% down non-FHA options where it drops off once you have the equity without needing to refinance. 

or a 4 plex  maybe what they are thinking is its a non conforming grandfathered use.. 

I'd avoid eastern Hyattsville, where the sidewalks are non-existent or cruddy.

Very few reputable RV parks allow owners of sites to rent them out to non family.

These are some of the better numbers I've seen in my area, but it's obviously a non-starter if my estimates are reasonable.

I'm happy about this part: "Incumbent in the sale of Fannie Mae’s non-performing loans are requirements that buyers of these loans pursue loss mitigation that is sustainable for the borrower." 

I am not a FL expert but there are some who are on the site.

I am certainly no expert in insurance but I haven't heard of an arrangement like you describe. 

In this particular thread, people are doing it to free up their VA or FHA loan entitlement.In general for non-biggerpockets.com people, the motive is because they can get a better mortgage today than they could when they purchased the home.