Is it permissible for a husband to divorce his wife after problems have arisen between his family and hers, and after she refused his attempts to reconcile and bring the two families closer, and after she started to curse him and his family?

Marriage matters should be documented to avoid disagreements, and marital problems should be resolved between the couple away from the interference of others. Regarding the problem, it is best to mend the situation between the spouses if possible, to ensure the upbringing of the children, and the family should assist in this, cooperating in righteousness. If reconciliation is not possible, then he should let go of his attachment to her, and give her her rights of deferred dower, maintenance, and clothing during the 'iddah (waiting period). If the matter becomes intractable, then the Shar'i courts are the ones to resolve the dispute.