The easiest thing to do would be got to your local bank and ask for its commercial real estate lender.  

You are very gifted with interior design, any tips on learning this?

This was before I knew about gift taxes... so I worked on a amazing business plan to take to my father in law to convince him this would be a sound investment.

You will need a RMLO reg mortg loan originator and you need to follow the ATR Ability to Repay Rules from the CFPB.The easiest way for Rent to Own or Lease w Option to Buy is give a lease at market rent, and a separate 3% option consideration to buy at today's comps' sales price, 12 mo term.

With just two units it's probably easiest to just split the bill down the middle.

Be careful about adding anyone to a title, depending on the circumstances, you might well be opening yourself up to gift taxes. 

Cash for keys is the quickest and easiest solution to your issue. 

You can PM me your email address and I can send you examples of properties my clients recently bought.I think CPS has a great system in place, especially with our magnet, classical, and gifted schools.  

-- Can you be gifted money for a downpayment in an FHA?

It is not the easiest thing to do but try to find out how much they owe.