Is it permissible to sell the house that a father gifted to his son, stipulating that it not be disposed of or abandoned, given work circumstances that necessitate relocation and the difficulty of maintaining the house?

Obedience to one's father is obligatory in matters that benefit him, provided that no harm or undue hardship results from it. If there is harm, his obedience is waived. Accordingly, there is no sin in selling the house if living in it causes considerable harm or hardship.