elect the right service - Make sure that the professional service you choose is accredited by the American Registry of Estate Agents. You risk spending too much money if you use a service not accredited by ARB. A good choice is a reunion attestation service that is accredited by the IRC, or the Professional Travel Association. The IRC maintains a list of accredited agencies that are licensed to provide the reunion service. It is important to ensure that the agency you choose is on this list.