My ADU is under 500 sq ft, so I didn't have to pay the extra sewer connection and school fees.

I would only use the heloc if you plan on cashout refinancing one of the properties to pay it off once the rehab is complete. 

Which is somewhat frustrating if a flipper would pay 5-10k for it at that price.

I already released him from the lease as he was near the end of it anyway but I get the sense that he wants me to pay him back for the time he was there and/or his medical bills.The other thing is he left behind some belongings behind.

I was willing to pay a higher upfront cost and sacrifice a greater monthly cash flow to achieve these top two priorities.We landed on a SFR in Harvest, AL.

They pay their bills on time and make good tenants.

Keep in mind that all this time we were living with my parents paying them rent but saving/starving to score our next deal. 

Do they pay within 5 days of the first of the month (in some states that is not late)? 

The commissioner ordered me to pay the plaintiff over $9k plus her attorney fees.

If we can't find a solution, I think she will be OK with me adding her property under my own account, and then me paying her out monthly.