Raising Money for Shanna

I’ve been quite busy lately trying to help my family,going to college, and work. Two weeks ago we found out that Shanna (my fiancé’s aunt, who passed away in 2016) husband hasn’t payed the house bill in 3 months. We trusted in him to pay it because he promised Debbie that he would continue paying on it, until it was payed off. Debbie can’t pay on the house because she can’t work. She is disabled and has Dementia and micro seizures.
This home has been in the family for centuries so we are fixing to kick him out and take over on the payments. He was living off of Shanna’s life issurance and he ran out of it. We visited her grave site recently and we noticed that he still hasn’t bought her a tombstone. He has left everything in our laps and we are needing help. We aren’t asking for a lot, every little bit helps. We have created a go fund me to help pay for her tombstone and make a couple payments on the house until we can figure out what step to take next. Here is her go fund me: https://www.gofundme.com/raising-money-for-shanna