We Inherited A Property And Mother-in-law Will Not Leave

I am marking this as landlord tenant housing because I am unsure what else it could be classified as.

A little backstory me(27) and my husband (28) inherited a property from his late uncle (95). Near the end of his life my husband's mother (50s?) at the time was going over and helping him because she was not working. Her house had caught on fire about a year and a half ago so she moved in with the uncle while she waited for her house to be renovated. The problem is she is a hoarder. It is taken this long just to clean her house out to get it renovated, and it is still not ready. The Uncle passed away 11 months ago and left my husband and I his property and she is currently still living on that property. she is making it extremely difficult to get into the property to start doing repairs on the water heater/ well pump or anything else that is broken. She is completely destroying the property in the process of trying to get her property prepared to live in again. She is not paying us rent and there never was a lease in place. She was the beneficiary of the will and held onto the estate of the property as long as possible and only just recently signed it over. We are giving her a 24-hour notice every time we try to bring a contracter over to give us a quote to do an addition or to repair something that is broken and she will scream at us that we are pushing her to fast. We just want to renovate the property to live on but she is making it extremely hard and destroying the property at the same time. What are some things that we can do? I feel like we need to evict her to get anything done. We tried to have some builders come in to give us an estimate and she stood next to us the entire time demanding her opinion be heard even though she is not paying for any part of it. Anytime we help her clean out the inherited property she just buys more stuff to add to it. She almost refused to give us a key to the house but thankfully my husband and his brother were able to get a copy.

I am lost at what we should do. Has anyone else gone through something like this? It is extremely hard because if we evict her she will be living out of her car until her house is done. If we let her keep living in the house, at this rate it will take one phone call and it will become condemned and cost us even more to get it up to code to do an addition. Any advice would be so helpful thank you.