[quote="nancymarie, post:1, topic:234598"]
Both of my brothers married non-Catholic women and both were married outside the Church. They are both now lapsed Catholics.
Can my brothers still come back to the Church and receive Communion? Or would they have to have their marriages convalidated first?
a person in this situation, a Catholic who married a non-Catholic outside Church laws and ceased practicing the faith, would need to go to confession and get pastoral direction from their priest, which would no doubt include having the marriage convalidated after appropriate preparation, including needed dispensations, and sometimes living "as brother and sister" until that time so that he might return to the sacraments. If unwilling to do that (and the wife would have to agree) he would make confession and return to communion just before or after the convalidation.
Your brother needs to speak to his priest. There is nothing you can do for him in this situation except pray.