Am i making a mistake?

[William Huston]

I own a house in North Carolina since 2003, i paid 78k for it back then but now its worth about 54k according to my latest appraisal, i lived in the house for 5 years and now its been on the market as a rental, but i have had the darnest time with renters with it, i have had it vandalized twice, a/c stolen when vacant, and broken into when vacant along with multiple renters refusing to pay rent after moving in and living freely tell i evict them. I have lost THOUSANDS over the years on the property just trying to keep it as a rentable unit. Recently with the changes in flood insurance cost my expenses went up even more, so between all of that and it being empty often between renters i am really contemplating selling it. I have had it for sale for about 5 months now at 60k, 55k, and 50k without a single offer except some wholesaler offering 32k for it, i recently countered it to 40k and im waiting for a response.. but i feel like the best i can do is dump it to the wholesaler and cut my loses.... but the only thing that sucks is i still owe 49k on the mortgage, so i would have to pay out of pocket the difference, which i have access to....