SPERM DONOR AGREEMENTS:  Intended Parents (or IP) who decide to use a known sperm donor should finalize a sperm donor agreement.  In this agreement, the parties identify who is intended to be the legal parents of the unborn child, what, if any, involvement the donor will have with the child, and whether the identity of the donor will be revealed to the child or other family members.  In addition, the donor agreement has important waivers of rights concerning custody, visitation and child support.  Finally, the donor agreement has provisions whereby the donor agrees to cooperate in any legal proceedings necessary to establish parentage of the IP, including first and second-parent adoptions.