Your question is a bit unclear. I think you are asking about the benefits of seller financing. More or less you hit the nail on the head... "if the terms are right". Seller financing enables you to do anything (or just about anything) to control a property.
Benefits to the buyer:
- negotiable/competitive down payment
- competitive interest rate
- negotiable terms (interest only or principle only for X years/months)
- Loan doesn't necessarily count on your credit history or toward FHA limit
Benefits to seller:
- larger pool of people to work with. I know I won't qualify for traditional financing as an investor.
-- Make a little bit of extra money. Wrapping your existing mortgage can help you earn 1-2% without trying.
-- Can possibly get the property back in event of default.
I maybe missing something. Anyone else want to chime in? The reality is the benefits are infinite. I've found the best part of real estate investing is how creative I can be when doing a deal. Will someone ever trade you a boat or car for 40 shares of Google? Nope. In real estate it's what ever you can work out between the parties.