The donor's intent is protected by American law. According to Wikipedia:
On November, 2002, an anonymous donation of two million dollars was given explicitly and solely for the purchase of the Hotel Accion to house the Redemptoris Mater Seminary. That was the donor's intent, which is protected by law. It appears that the commission that is pushing for the sale of the properties for the Chancery is not taking into account the intention of the donor.