Probably not. Whoever did so would want to be in first position on the property, but that's already being held by the owner who is unlikely to give up that position. I don't think it's enough equity for anyone to want to do anything with you at this point - it's only $18k in.
A better scenario might be to find a bank that's willing to cash you out with the existing owner and roll what you want to do into another loan. But I think that's probably going to be rough as well unless you stole this property from the owner.