Newbie - 1 house in probate

[Belinda Kasmiersky]

I have to start by saying I bought a house with my mom - she passed and I own 77 percent now through a testementary trust.  My siblings are contesting and refusing to help with any costs.   I had a renter and her family (some which weren't supposed to be there) move out because I finally decided after carrying all costs of repairs, utilitites, etc. that I wouldn't spend anymore money on a house that needs a complete overhaul and one where the heirs are refusing my offers to buy, not paying taxes or costs and generally being cantakerous, etc.   

The reason I am writing is to find out if there is anyway I can just move on by using this house and the portion I own as collateral to pick up another rental home somehow?  I do not see any relief in the future for this house and want to move forward with building a rental business.  Any suggestions?

I am new to this, this is my first house and I had the renter for eight months.