Quick update: Got the green light to list the house. Contacted realtor immediately and met with her the very next day. Signed listing agreement, house will be photographed tomorrow so listing should be up shortly after.
Was at house yesterday to do yard cleanup, checking lighting, replacing light bulb over attic stairway with an LED so much better lighting for buyers wanting to see attic. Next step for me is to secure snow removal services to handle snow since I am over an hour away. I will pick up that tab, sending invoice to MS, if she refuses to pay or delays, attorney will evaluate then. Main thing is to get that house sold, all other stuff can be worked out later.
From what I gather, MS attorney has indicated to our attorney that MS is difficult to deal with. No big surprise. Possible that it was on his advice to give me the authority to sell. In other news, relationship with one extended family member seems to be already impacted. My counseling appointment is this Saturday and it will be just in time for the holidays...sigh.