You could pay them a flat interest rate on the funds they contribute, similar to a private lender, or offer a percentage of the profits to align their success with yours.

Affordable housing, which means Fed funds, is a very tricky type of development for everyone involved.

The rumblings of the NYC to Scranton Amtrak line seem more realistic than ever before with big funding from various state and federal programs. 

We have found what works and repeat it as much as funds allow.

Or trying to see to build my credit to get more funds/ loans to purchase more properties.

HI Patrick, you can go up to 90% CLTV for HELOC primary or 89.9% for cash out refi but rates can be a bit higher depending how you use those funds for a better ROI.

There was enough cash flow that I creatively used a 3rd mortgage to help fund the 20% down on the first two loans.

Being novices in the game we do not have the legal or business background to know where to begin on accepting funds.

You need a proof of funds or a pre-approval to go with any offer so if it's hard money, they will issue a letter.

So, 400k - 500k sounds like lots of money but if you wanna operate in the 300k+ entry point it get can swallowed up quick.One strategy I'd try is to be a buyer at the auctions, win a bid on a good house, close on it in cash (you should be a great deal under market value) and then get into a delayed purchase bridge loan product which will cash you out a certain percentage of the purchase and supply the rehab funds.