Tenant Claims Landlord is Stealing from Her

[Christine N.]

I bought a duplex to live in (downstairs) and rent (upstairs).  I inherited a lease / tenant who has been here 20 years. She is essentially a hoarder and extremely suspicious.  I intended to ride out her lease (3 months now remaining) and not renew.  Major concern is that she routinely accuses me of stealing things from her.  She claims I have taken everything from a piece of wood to a laundry basket of her daughters bluejeans from 25 years ago.  The fact is I have never and would never take things. I do however abhor the mess.  What can I do to protect myself from the false accusations?