22 CFR 72.24: Conflicting claims.

Neither the consular officer nor the Department of State has the authority or responsibility to mediate or determine the validity or order of contending claims to the personal estate of a deceased United States citizen or non-citizen national. If rival claimants, executors or administrators demand the personal estate in the consular officer's possession, the officer should not release the estate to any claimant until a legally binding agreement in writing has been reached or until the dispute is settled by a court of competent jurisdiction, and/or the Department has approved the release.