Also, would this loan help build my personal credit, or would it only report to business credit bureaus under my LLC?

I work with many out-of-state investors to help them build and diversify their portfolios.

Or building out systems like CRMs.

@Aaron Washington wind insurance is a must unless you have master insurance in place that covers your building.

You have to know the market before you build a plan and I don't think this market supports your intended plan.

Apparently, not only did they sell at a loss, I didn't get any money back at all and they claim I owe them an additional $40,000 for "renovations" despite no work being done to the building at all. 

Go to BUILD YOUR TEAM at the top of the screen and look for local investors or meetups in your area.

You definitely can't just buy a building low down, do no work to it and keep old rents and expect to profit. 

Build a strong network of mentors and industry professionals! 

Build a team with all that time in the morning and and the time you have by walking up early etc.