Another option is to consider some form of seller/creative financing if you're not having much luck qualify for a commercial loan. 

People don’t sue people that qualify for food stamps.

But he works under the table and has little income and would no longer qualify for a loan. 

My understanding is it’s best to set up an LLC but we would not qualify for a mortgage as an LLC.

I always "qualify" the lead by asking a few simple questions.

Can you qualify for that?

Consider whether they are even qualified to be your partner.

To get there, at a minimum you will have to:Repair the 11existing homes x $15k per home = $165kHunt down 7 used homes, transport, set up, make repairs x $25k per home = $175kSell all 18 homes to qualified tenants (you will likely have to carry paper on the homes, which will eventually return the capitalization above, but assume it will take 5 years or more)Repair the park infrastructure, roads, signage, the residence, landscaping, etc (let's assume you will spend at least $50k on this if you are lucky, though it could easily turn into a lot more) The bullet points above will likely take a couple years and it could take double that, depending on how aggressive you are, what the availability of good labor/contractors in Indy, and what kind of demand exists for that location.  

The trip doesn't have to be "100% business" to qualify.

So with that logic, if two systems are improved and it's more than 2500, combined, would it not qualify under DMSH as you mentioned on your first post, or we can interpret ( more taxpayer-friendly) treatment of applying DMSH to each system first.