The amount the bank is claiming is listed in the filed paperwork along with how the interest accrues so you should be able to accurately track the payoff amount as time goes on. 

From watching this topic for quite some time, I know there are quite a few of us who have the same curiosity.

Our neighbor has no monthly payment on it or interest accrued

Only problem is she charges more than others are charging for their cleaning fees.I've shopped other cleaners just out of curiosity and most are around $175 and she is at $200.It's the off season now in my market (ski town) and to compete, my rates need to be around $100/night.

The alternative is to continue accruing 2-4 units along this well-trodden path. 

You can set up the loans so that the interest accrues, so you don't have to track payments.Your lender LLC is unlikely to get sued, since it has no "risky" activity. 

Out of curiosity, are you only investing in 506(b) and Reg A offerings?

And he is entertaining to be sure.Hope that helps satisfy your curiosity.

The tenants will also remain liable for any unpaid rent, damages, or other charges accrued under this lease agreement.

On interest-only loans you're paying the interest off every month but in this set up the interest accrues.