I would ask several real estate agents what the house is worth as is?
I would ask the same what the house would be worth fixed up.
If your in the position to have it fixed up for sale or for a rental.?
Some times just a simple face lift ( paint, up dated floor coverings, new light fixtures etc ) may cost you minimum for your return in either more rent or higher sales price.
I then would decide to either use it as a rental or sale it.
Ask your tax accountant which would help you the most.
If the house is in a good market and you don't need the money, You could use it as a rental, get a tax break each year and have a pretty good positive cash flow. It may go up 10 percent a year and also make you pretty good cash each month.
Then you get more equity and money each month. if you need to have someone manage it they will most likely charge you 10 rent and repairs as needed. Not a bad deal if they manage it proper!
My suggestions
Dave