It is called proposed construction or some even call them air houses.

But spend $$ and then try and hit me for the $$, I would have a harder time saying YESThis is what I would propose at this stage......give me all the receipts of actual cost incurred and I'll agree to pay half of it.

Do you want to buy the place but not have to make any payments on it until it's rented at $4,300 / month, or you want to get the place under contract and see if the Seller/builder can really rent it out for the proposed $4,300 / month before you close on the deal? 

The new legislation that went active on Jan 1 changed the game and allows for adding 25% percent more units for multifamily state wide.  

I’ll listen to any proposals, I just want to at least get my feet wet.

@Kevin Chan I think Oklahoma fits the proposed model.

There are a lot of great articles about it here on BP, episodes in the BP podcasts, etc.Again, it's possible people do it with ADUs around here but I haven't really heard of it, at least in RI where I live and do most of my investing - except for some legislation a few years ago limiting it to family members (i.e., a bona fide "in law" unit).

I have been trying to find local attorneys to help review leases and provide advice on the new legislation, but most don't want to touch it. 

I'd propose going conventional 5% down on an owner occupant loan on a MFR property.

Myself and sizeable group of investors and homeowners in Ann Arbor are fighting short term rental banning legislation in the City of Ann Arbor and are interested in working with an attorney or advocate with experience in short term rental legislation.