Also, we're not getting anywhere near market rent for the home since its only half the home being rented, however we do feel that we're getting what similar efficiencies are getting in the neighborhood.   

In my day job I do SEO for a digital marketing agency and I am more than happy to talk SEO with anyone who has questions.I'm interested in Long-term rentals, though admittedly, finding deals below market value and funding those deals (not to mention I honestly have no idea have to put the deals under contract in the first place), are problem the first things I'll need to learn.

Few agents in the market understand seller finance and the many ways it can be structured, and few will sometimes promote it, but the rest are just risk averse.

Loan sizing varies by market, but in most areas your loan will be sized to 75-80% LTV; 1.20-1.25x DCR; 30-year amortization.

Another option is to estimate value based on potential income and market cap rates, which can give you an investor’s perspective.

All channels can work, but in my experience, the greatest oppportunities often pop up when you know exactly what your returns need to look like and keep your ear to the ground in your market.

This is more common in today's market and often allows the seller to get a higher sale price than if you were to go through a bank/SBA loan.

Study the market.

The reality in this market is that you would likely not have any funds left to return to them since it is unlikely to get re-rented so soon.

Think about your market and what people are willing to pay a premium for.