Think if someone like Public Storage builds next door. 

It can potentially be deductible as an ordinary or rental expense, an itemized deduction or simply non-deductible. 

Assume an FHA loan to non-occupy and use for rental real estate.... 

My wife and I have obtained three traditional loans and one lease with the option to purchase, resulting in most banks turning us down based on debt to income (non-portfolio lenders). 

Most non-qm loan products will never have a 95% LTV due to the inherent risks associated with these type of loans not being traditionally backed by fannie or freddie (investment banks).

The short version is that you must have a  Private Placement Memorandum (PPM) to show your investors and you must decide upfront if you will only accept accredited investors or if you will allow investment from non-accredited investors.  

You would have to go after the one individual for non-payment and you could only remove the other three by going through the legal process like you would for someone on a verbal agreement, which puts you in a he-said, she-said situation. 

I think it would require a major asset heavy backer to provide the confidence the investing public needs to scale to profitability.  

There are some public sources (www.city-data.com) that can provide good baseline information.

This is now open to non-accredited investors (as well as accredited) for as little as $100.