N.H. Rev. Stat. § 151:25-b
A public or private nursing home or assisted living facility, for which residents are paying out of pocket, shall not enforce a 30-day notice of vacancy policy in the event of the resident's death. The nursing home or assisted living facility shall be entitled to rent and fees for not more than 10 days from the date of the resident's death. If there is personal property to remove that impedes the reuse of the room, the 10-day period shall not begin until after the family, estate, or responsible party has removed the deceased person's personal property. If the room is occupied by a new resident before the expiration of the 10-day period, rent and fees for the 10-day period shall be prorated from the date of such occupancy and returned to the family, estate, or other responsible party.
RSA 151:25-b