You can see more info on this type of account here: https://catchfirefunding.com/want-to-use-retirement-money-fo...It's definitely complex, and there are absolutely restrictions, but also absolutely ways to make it work.

If you have time then I would definitely speak to another lender.

If you can definitively prove that the seller intended to deceive you about the square footage for their personal gain, you may be able to take legal action, but probably low chance of success considering you had ample opportunity to measure the home or get an appraisal with measurements prior to closing, and had your chance to negotiate the price based on square footage and all other factors prior to closing. 

Definitely save your battles for more expensive issues.    -- Good Luck!

Yes indeed mate.I probably would have fixed the rate also but "underwritten" the deal from a worst case rate scenario like I would do with SFH if financing.I'm not versed in large multifamily deals and would love to learn more.I think I could really do some "damage" in the field because I own and run a property management company and we run a tight ship that's very well optimized from an automation aspect and affiliate fee structure standpoint.So my bottom line for example buying a 50 or 100 unit would be much safer/higher due to in-house PM and "working" the margin.Vertical integration of management (and rehab) would definitely be a value proposition for you (and the small % of other sponsors who have it). 

You realize the lease terms, which you probably printed off some legal-ish website is ripe for retaliation if you ever came across a true problem tenant. 

College students meet your definition of adults?

^^ it’s definitely not as easy as people make it sound.

In other words, is legal action necessary? 

AirBNBs are in a precarious legal state in New Orleans.