That scenario, a 4% loan with an origination fee, sounds like a regular bank loan and a mortgage broker.That may not be the end of the world but with regular bank rates, come regular bank requirements and delays.

I have purchased quick books online and find it very geared towards regular small business and not real estate.

As a plumbing contractor how I've learned that one of the best ways to meet another decent contractor is to go an acutal supply house (not homedepot) and see who the regulars are. 

For the most part, if one tenant were to leave the quad my regular income would be stressed, since I am only able to rent out 3, as I am required to live there or have the note called.

As it increases the money supply, prices rise as in regular inflation.

I feel bad for funds or investors that primarily rely on regular payments from performing notes.

I also use them during vacancy turnovers since those turnovers are fully automated, self-serve showings, but you have to have a way to ensure batteries get swapped out regularly, then run a separate cellular network to push updates to the locks over time, which is a another added cost.

We are ready to buy our first investment property however, we do not have any regular reportable income.

I want to essentially invest all money earned from my regular job and invest into real estate.

For just one unit (for now) and with a good amount of comparable or identical units, which of the 3 would be the best for me?