Hopefully you won't need this information, but if you do, it's a relief to know what to do.
When a person dies with a mortgage on their house, whether or not they had a will or trust, someone will have to pay that mortgage. It doesn't just 'go away.' The mortgage can be paid off entirely by selling the property, by paying it off from other assets in the estate, or your own cash or new mortgage.
The bickering...real or not? Couples melt down over paint color, or bicker about bath size. Apparently some of that's real. The show isn't scripted, but producers urge people to exaggerate dislikes and disagreements. People like hamming it up.
Set up a LISTING INTERVIEW with me right away if you plan to sell, so I can present you with a price analysis and selling plan.