My Landlord Died Around 3 Years Ago And Im Living Rent Free

I (23F) moved in to a duplex with my mom in 2017 , the owner of the house had died but I guess her daughter inherited the property and charged us pretty cheap rent, no lease or contract we just paid cash. Fast forward to around 3 years ago, she died, she had no kids or anyone she could leave the house to, my mom said to stay here until the bank or anyone came, they would have to give us at least 30 days notice, well, Its been 3 yrs and nobody has come. I checked if the house taxes have been paid and they have, up until this yr, I still have time to pay them before they make a tax certificate but Idk if I should pay it, or who owns this. In the public records it still says the original owners name, so Im guessing it wasn’t inherited to the daughter? Im don’t know how any of this works and Im scared someone comes and asks for all of the yrs worth of rent. Because you’re supposed to save the money for when someone comes. What should I do?
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