When analyzing a luxury short term rental (STR) vacation home for investment in today's mortgage rate environment, the ROI & margins can be extremely tight. 

If long-term appreciation is a part of your investment strategy then Columbus would be worth considering!

Jack, Thank you for your detailed and informative response.

The contracto I used needed baby sitting and the attention to detail was lacking so half way through the reno I was more particular and communicated my expectations clearly and ofter Did you work with any real estate professionals (agents, lenders, etc.) that you'd recommend to others?

If they are already on an active lease (not month to month) you may need to keep the current lease terms until it expires.

Depending on the auction terms it could be that result plus the forfeiture of your deposit, or perhaps the trustee/auction company must elect one remedy vs. the other.

Refinance in to conventional loan as a primary for good long term debt.

Price is $200,000 with $20,000 down on a 6 1/2 year term (78 payments) with 0% interest.

Message me and I can give you more details. 

You could ask your sister to finance it (her price, your terms).