If Amy had moved the rescue horses when she found them, she would not have had to buy them. Bad writing.
In reality, bank auctions take months, even years after death or foreclosure seizure. Not just one day.
This should be retitled as How to Ruin a Marriage in 10 Minutes.
Talking to Lou (holding Katie), Jack says "You're going to have to take her with you Amy."
Once again Mallory's meddling makes things worse.