$50K lien placed on home by dying husband - valid?
My friend's husband was within a month of his death of liver cancer. His (domineering) mother had him sign a typewritten second "lean" that she had typed up for $50,000 on the home "in the event the above stated home should be sold". Supposedly this was in exchange for labor that her deceased husband did on the home years ago, although there was never any contract, of course, and no statement of the work he performed. It was signed and notarized in July, her husband died in August, and it was finally recorded at the end of February of the following year ~ once the mother-in-law saw that my friend had listed the house for sale. My friend had no knowledge of this, and (you may have guessed by now) the relationship between mother-in-law and my friend are have always been very strained.
Now someone wants to purchase her home for cash (and she desperately needs to sell - can't afford the mtg payment), but with the discovery of this lien, there is no equity left for her to move on. Is this lien valid and enforceable, or must the MIL prove up that X amount of work was performed?
Any assistance/information/thoughts would be greatly appreciated.