I've reached out to customer service and received little assistance.

Living in one unit and renting out the other helps you scale quickly because you need a lower down payment for a primary residence. 

Craig,I took a quick stroll on 7e Note Investment site.

Frequent turnovers can quickly eat into your profits.Instead, I’d recommend building up a solid reserve fund and addressing work orders promptly.

I've found that there are a lot of out of state investors who like Tucson and this provides a quick explanation for the area.

A prudent investor doesn't seek quick riches through shortcuts.

I know nothing about the above firm you mention, but a quick look on their website shows they are likely offering you DSCR, so just general things to look out for in that world. 

Since I am just beginning I am just looking to make a quick sale to build capital.

I have found a couple masterminds that are tempting and I think would help me learn quickly but they are anywhere from 7-15k and the general sentiment I've found is to avoid these if possible.

I'd like to keep my first deal relatively simple and therefore I'm focusing on 3-4 MF for now with aims to quickly advance into 5+ MF and commercial.