The ruling on the condition of selling land to a specific group

Question:
He says: Honorable Shaykh, may Allah grant you success. Some real estate offices, if you want to buy a piece of land, impose a condition on you that if you buy it, you must not sell it to a certain group of people. This is so that the development plan remains complete and exclusive to a specific group, such as doctors or others. Is this condition valid if the buyer agrees to it? If the development plan requires specific people and is not sold to others, because selling to anyone other than this type of person would cause harm to the residents if sold to others, then this is a valid condition. That is, you do not sell to bachelors or unknown people, but to families who will build houses for their families. Selling to bachelors or unknown people is a valid condition that you do not sell except to a specific group of people so that no harm comes to the residents in the future. Yes.

Answer:
specific people, and it is not sold to anyone else, because this involves harm. If it is sold to people other than this group, harm will befall the residents. This is a valid condition. That is, you do not bring in bachelors and sell them land, thereby depriving the families who will build houses for their households. Selling to bachelors or unknown people is a valid condition: that you do not sell except to a specific category of people, so that no harm comes to the residents in the future. Yes.