They are paying me rent directly.  

in what I just laid out, you'd make monthly payments to the seller just like you would to a bank for 5 years, and then the remaining principal balance of the loan would be due, at which time presumably you would refinance the house into a commercial mortgage and use the proceeds to pay off the seller. 

I have ideas of the values, but nothing based on anything concrete.If I take out a construction loan, how do I pay for the construction loan during the process? 

Now I'm 9 years into it and my assets pay for everything.

If you're unwilling to charge a common fee, I wonder how you're going to handle a problematic tenant who is late on rent or responsible for paying the plumber to remove a kid's underwear from a clogged toilet.How will you conduct a credit/criminal screening without an electronic application?

Lenders don’t pay for problems.

1) an investor will pay the least for your house.2) An assumable loan will only help if you owe at least 8-%, preferably 90% or more if the sales price for an owner occupant who will pay the most. 3) it’s been a VERY slow winter.  

The plan is to use the proceeds from this rental to buy another rental property for about $650-700K, plus to pay off the home that they live in now ($260K owed).

What I'm really looking for is a simple platform where my tenant can pay rent online rather than send in a physical check every month (their current system...).

Pay to separately meter the utility.