What do I need to show proof that I able to sell my mom's home

[Sarah Jones]

Long story short sister was the first beneficiary she backed out mom approached me to see if my son and I would like to take over once she passed I agreedwe filled out transfer on death deed.. and I filed with county courthouse.. house is in my name I'm living in the home I'm behind on mortgage payments I'm wanting to sell I have a buyer title company asked if Mom was deceased and if the home and property was considered personal property there might be a problem what do I need to do to show that I'm able to sell the home. We weren't sure if my sister as the executor of the trust can give that authority for me to be able to sell the home she and I have already agreed to split the proceeds. They decided last minute they did not want to take on Mom's home when she passed so Mom approached me and asked me that's when we filled out the transfer on death the that the deed is in my name and I'm wanting to sell what all do I need to do on the first time homeowner I'm a novice lamens terms please. This just came up this evening I do have a real estate attorney that I will talk to you about this tomorrow I'm just worried about it tonight hoping to get some answers I just want to make sure I'm doing everything legally in the right way. Thank you for your time and any information you pass along to me. SRJ