Re-adoption may be necessary for children adopted internationally to ensure U.S. citizenship, change the child's name, amend their birth date, or guarantee inheritance and school benefits. The process typically costs around $2,000 in Virginia and takes about four months, though the cost and requirements may vary depending on the specific situation. Even if re-adoption is not required, it is often recommended to protect the adoption legally and for practical purposes like obtaining a U.S. birth certificate and social security number.