That woman was not very bright, but I suppose her children influenced her, thinking it will be worth more later.
I know that from personal experience dealing with my brothers on selling our mother's property (while she was alive, and at her request) We had a very good offer....NO NO, it will be worth MUCH more later on. After she died and 10 years later, keeping up the repairs, taxes etc. It sold for about 1/3 of what the original offer was. Dumped it. Idiots.
What this woman should have done is SELL at Trump's offer and take a Life Estate., she can live in it until she dies or chooses to move.....win/win for everyone.