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How to find lost money
Go to the national association of unclaimed property administrators website.
Naupa is a non-profit organization with the goal of reuniting property with its rightful owners. The naupa website is the best place to start because it provides links to all of the state unclaimed property databases in the us.
You can search the database for each state that you have lived in to see if you have any lost money. Search your state insurance department's database.