My initial cash investment was about $27,500, and my cash out refinance was about $15,000 more than that.

Also going through FSBO, what's the best way of initiating the process?

If she wants the house and feels capable of purchasing it, let her go to the bank to get qualified and initiate the move.

I am using QBO and want to account for utilities that I initially pay for (since they are shared throughout the building), and then the tenants reimburse me for each month (each unit pays a % of the total). 

This is where you will spend the bulk of your time initially is educating yourself and looking at opportunities.

That is still a very good return for a less than $16K initial investment (down plus closing but you may have put the closing cost in the loan and had even a smaller initial investment which would increase the ROI).You appear to have done great even if compensating yourself for you handyman labors.Great job and good luck

I have also received a few private messages so I'll be reaching out to them for some initial discussions.Trying to weight a conventional loan agains having to register a LLC for a hard money loan.

The payment plan would be the same as option 2.Pros:My minimum monthly mortgage payment would only increase by roughly $100, which would make this initial investment very low risk.Cons:Would have to rely on the higher interest Heloc for next investment.

The numbers look good, but I noticed that the initial equity is negative.

We had initially heard of the building through a local broker when it was off market in late 2017.