This is a long article but has some good information.I Accidentally Uncovered a Nationwide Scam on AirbnbI reserved a place through AirBnB last year that also turned out to be a scam.

you will also need to complete and affidavit that you have no outstanding tax balances that are past due, know how you plan to take title, and prepare to pay the remaining balance within 10 days of the courts confirmation of the sale, this can occur as soon as about 10 days after sale to several months after sale, so be ready for possible delays in possession,   I had one that took 3 months to confirm. and I have others happen in about a week.   

I'm buying an off market property from a wholesaler, do I need to check for liens on the property or any outstanding obligations from the previous owner that may become a problem for me?

They are based in Houston but have offices nationwide and help investors purchase all over.

Since you'll obviously pay off the HML first, but that still leaves about $16k in outstanding loan from the HELOC. 

Once the SFR is sold, then the sales proceeds would be used to pay off the closing costs, the selling costs, the mortgage, the DP, the outstanding balance of the LOC and all other costs.

You will see anything from outstanding HOA fees to mechanic liens to property line violations etc etc.

Both of those RE investments look outstanding today.There are many ways to reduce risk even when close to the top of the market. 

In the event that the date of November 29th, 2019 passes and the money is not returned, the interest rate on the loan amount will be 9.9% annual percentage rate on the outstanding balance.

She wants to sell it for the outstanding loan balance.