My Aunt Is Trying To Block Me From Using The Money My Grandma Left Me Because She Says I “only Got It Because I Visited More”

Location: Pennsylvania

My grandmother passed away in March. She had a small house, some bank accounts, and a $75k payable on death account that she changed to my name about 9 months before she died.

For context, my aunt was originally listed on that account years ago. My grandma changed it after my aunt stopped coming around unless she needed money. I did not ask her to do it. I actually did not even know the exact amount until after she passed. She just told me one day that she “fixed the bank stuff” because she trusted me to handle things without fighting everyone.

The bank already released the money to me last month. I paid for the headstone and some final bills because nobody else wanted to put anything on their card. I put the rest in savings because I had a weird feeling this was not over.

Now my aunt is texting me every few days saying she is going to sue me for “stealing from the estate.” She is saying my grandma was confused and that I manipulated her because I visited every Sunday and helped with groceries. My grandma was 82 but she lived alone, paid her own bills, drove until late last year, and was still arguing with Comcast on the phone better than I ever could.

There is a will too, but the POD account is not mentioned in it. The will splits personal property between my aunt and my dad, who is deceased, so I believe my dad’s share goes to me and my brother. I am not even trying to fight over the furniture or anything.

I had been budgeting money pretty tightly before all this and I do not want to spend thousands on a lawyer if my aunt is just mad and sending threats. But I also do not want to ignore something that could become serious.

Can she actually sue me personally after the bank already paid the POD account out? Does “I visited more” somehow become undue influence, or would she need real proof that my grandma did not understand what she was signing?