If they loan you 75% of the value of a property, they can foreclose on you and sell the property and recover most, if not all, of their money.If they loan you 100%, and subsequently foreclose, they will suffer a substantial loss.  

The bidder subsequently filed to rescind his bid, however lost his deposit and was forced to pay additional fees to cover court costs. 

If we do this loan (and any subsequent loans) in just my name could we potentially qualify for another vacation property loan down the line in just her name if she is back to working when the kids are older?

So you've got to monitor that.Also,  you do not want to do a refinance and is followed closely by a sale and subsequent 1031 exchange without running it by your accountant. 

It might be better to refinance as much as possible while still maintaining cashflow and subsequently getting a HELOC in case you find a use for those funds that deliver a better return than the cost of borrowing.

Enter the 1st installment from the Rent Center, subsequent installments are recorded in the checkbook register directly.

That wouldn't really be house hacking, since you can only have a family member living in it, not a general renter, and you also can't pass the unit on to a subsequent owner automatically - they have to apply to the town and be granted it for their family member, separately.

Subsequent posts seem to contradict that, so who knows.

Let's ignore for the moment subsequent year's taxes after the auction, for purposes of this example.If I buy at auction for $1,200 and someone redeems 1.5 years later, they owe the $1,200, plus $216 of interest.If the auction was for $1,200 and nobody bought the property, it will go on the State inventory.

We subsequently refinanced the property and have since rented them on AirBnB and VRBO.