You probably want to know whether you will be reimbursed from the estate for the attorney fees to get the process started in Probate Court. There...

The written agreement sounds like she had you sign an engagement letter or fee agreement where it stated you were to pay a $3,500 advanced fee...

You might want to look into whether there may be what is called a Conflict of Interest. It all depends on whether the representation in the past...

You may want to start with sending the Firm and the specific attorney handling your mother's case a written Letter stating exactly your position...