Can a man reclaim his dwelling which he gifted to his first divorced wife, given that he has a second wife and three children who were forced to rent a house?

There is no objection to a man giving something to his divorced wife, and he is not obligated to be just between her and his other wife, because the divorced woman is no longer his wife. Also, the majority of jurists do not obligate justice between wives in matters beyond the obligatory maintenance, although some scholars have obligated justice in gifts and other matters between wives. However, if a man gives a gift to his children, he must be just between them. The general rule is the prohibition of revoking a gift after its acceptance, except in two cases: a father revoking what he gave to his children, and someone who gave a gift for a purpose that was not achieved.