You will not get them to show up to complete the work, you will not recover your funds and you will have to move heaven and earth to make this "right" 1-See if you can settle with the contractor2-File complaints with the BBB (assuming they are registered), file a complaint with the state attorney general3-SueI used to believe there was some sort of over arching justice in the world, but then I got into real estate and became friends with RE attorneys.

Yes, you can cut your hair yourself, you can floss and deep clean your teeth too , also prep your own avocado toast with your own squished Orange for drink.. 

My question is should I take the money I have and pay off the Heloc and then when everything is sorted out borrow the money for the building, or just keep making payments and wait it out?

Which is why we see all the "real estate investors" not really making any sort of meaningful cash flow.

You'll thank yourself in 10 years and will have all of your hair from not managing all of those units...3.

We found evidence of mental health and familial issues, all sorts of debt, IRS issues, and even YouTube videos showing a life in disarray. 

I ran the numbers on some properties and they meet well above the 1% rule, but that sort of worries me...

Wondering if there is a way to move him out, take over the payments, rehab, list, and do some sort of profit share at the end of sale.

- and finally once you do this, realize it will never even be close to how it actually plays out in real life, but it can serve as a guide for what sort of money you may need to save up to try and actually accomplish something like this.

., hopefully they will sort things out.