A deed prohibiting joint tenants from suing for partition or converting their joint tenancy interest into a tenancy in common without the consent of the other owners was an invalid restraint on alienation and unenforceable. Mindock v DuMars, 2022 WL 1410017, 2022 US App LEXIS 12044 (10th Cir 2022). The court did not accept the argument that the restraint was reasonable as a means to keep ownership of the home in the family when the joint tenants were all the grandchildren of the grantor.