Estate Executor liability question

[Brandon Nelson]

Hi BP, I'm a Realtor in WA State. I was referred to help a young lady whose father died in a tragic accident, and left her with a RAT'S NEST of a property. Multiple squatters in RV's and the main house, over 100 abandoned vehicles, tractors, equipment, junk, etc. Let's put market value at $300K. Somehow the deceased owner/father pulled a $400K mortgage on this property 3 years ago. He has also (somehow) built up (allegedly) 6 figures in unpaid utility bills. The daughter has flown out from New York to try to fulfill her duties as executor. She has a local attorney helping her, about to file public notice to other possible creditors, etc. 
My question: How would a court determine whether this daughter / executor has any liability if she were to just walk away from this property, hand it over to the bank and let them deal with it? She did have a co-executor who took one look and resigned instantly. Can she do the same, with no legal repercussions? Thanks!