I was able to secure $27k from my parents as a direct non interest family loan and $8k from our savings.

The same goes for PMs and companies selling properties.

I forget It was likely a mix of private and traditional loans I just don't recall to be honest nothing illegal. 

I would get a bridge loan to acquire the property if it needs to be rehabbed and/or closed quickly.

I would certainly disclose the currently approved special assessments, but since any further financial obligations and project plans have not been voted on by the membership, approved in a budget, or secured in a loan; must I disclose the knowledge that the board is trending in that direction?

If you are looking to buy in PA, its possible you can qualify for PHA KFIT program that gives you a 5% closing cost forgivable loan.

Assuming since you did any FHA loan, this was a househack?

Has anyone used the company BNB Leverage to help with the airbnb arbitrage strategy?

Doing so will seperate your investments from your personal assets and protect you from liability. also, one thing you may not know is that you cannot get a conventional loan with an LLC.

Financing options do exist: hard money loans, renovation loans, and some traditional mortgages can be used on distressed properties if criteria are met.