Thanks all for the great input.
The more I think about it, the more I think I will likely sell the house. While I am terribly grateful to have this house with no mortgage, it feels like a weight around my neck, and it is scary thinking about relying on a management company to handle it, since I took care of it before when I rented it. Also, I had similar awful renters in the past as some of y'all have had. My property taxes have been going up also.
I think what I should do now is find a good accountant to give me some professional advice on how to manage my future. I honestly hate to do that since I like taking care of whatever I can myself, but these are big decisions I'm looking at now which will affect the rest of my life.
I think I'm in a better situation than I was originally thinking if I sell my house. Even if I spent every dollar of the sale before retirement age (which I can't see even being a remote possibility- it would be more spending than I am doing now in a house), I will have enough to live on at retirement with my pension and ss.
Once I actually thought about selling this house, I felt a huge weight lift off my shoulders. I actually feel lighter now. I am so tired of yard work, house maintenance, cleaning, taxes, etc. Also I can't even leave now for more than a few days because of fear of a break in, that it is sometimes like a prison to me.
I am so excited! I'm going to start looking at cargo trailers next week and plan on buying one in the next year so I can take my time fixing it up (plus I'm so excited about ditching this house and leaving that it will be fun to work on it).
Thank you again to everyone who took the time to read and respond to my post. Hugs around the room!