If you only have 2 candidates the odds of having one complete the auction is small.  

He seemed to make some odd adjustments on his end.

I would also say, it's odd that she's paying cash for these things and has a great credit score.  

I edge my odds by not allowing 1) last minute check-ins (must be at least 2 days in advance) 2) No 1 night stays (eliminates partiers) 3) Must have previous good reviews.These will vette 99% of your guests adequately....

The odd thing is that the bank is supposed to me my partner. 

As others pointed out, this may be a situation where you want to record the inspection to document her odd behavior in case you have to defend yourself in court.

Slight possibility it works out, but high probability it doesn’t - put the odds into your favor.

Profile here for reference: https://www.biggerpockets.com/users/amyb289It stood out as oddly out of place to me to the point where I recalled it and was able to dig it up tonight.Anyway, again...

Lebron James can play in the NBA, you know?   

The deal is just too odd and risky to pursue for me.