Reclaiming a Basement

[Alyssa Lebetsamer]

Hello Everyone! I have an inherited tenant who has a basement under her unit. The former building owner allowed her to store some things in there, though the right to do so was never outlined in her lease. When I bought the building, I didn't think much about it, but I tried to enter the basement to do some repairs a few weeks back only to find that the tenant had changed the padlock to one which I did not have a key for. She opened it for me and I discovered she had gone from storing a few items to taking over the basement completely. I couldn't enter to do my repairs. She and I agreed that she would clean it out - I gave her 6 weeks. The time span is now up and I went to check on the space today. It is much better, and functional again, but she is still storing things in the basement. Before I insist that she empties everything out completely (I want to change the lock and ensure that that whole debacle doesn't happen again) do I have to honor her previous agreement with the prior landlord and let her keep things in there? Or is it my right to insist on an empty basement since her lease doesn't entitle her to it? What would you all do?