You said your son is an adult? No. You only get stimulus money for a dependent child under the age of 17. If your son is an adult you get the $500 credit for other dependents, and that is all.
CREDIT FOR OTHER DEPENDENTS
https://ttlc.intuit.com/questions/4499708-what-is-the-500-credit-for-other-dependents-family-tax-cre...
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