my husband and his two sisters own their deceased parents home free and clear. My husbands wants to sell his 1/3 and take his name off title.

There are two "hard parts" to the problem.  The first is arriving at the point of filing a lawsuit against a sibling.  The other is the distance. The good news is that almost certainly New York has a proceeding whereby a co-owner can petition the court to require that co-owned property be sold for a division of the net sale proceeds.  Such a suit is not really a lawsuit against the siblings -- it is a lawsuit asking the court to require that the property be sold.   In such a suit, any of the co-owners would "probably" have a right to purchase the property for an appraisal value to avoid the sale.  Otherwise, the court would almost certainly order a sale by public auction and the sale would be conducted by court personnel.  An auction will not necessarily bring market value, but it would get the job done.   Find a recommended real estate lawyer in the county where the property is located.  I don't recommend using the yellow pages for the search for a lawyer.  Try to get a referral from someone.