[or-roots] Marriage, or non-marriage?

[ffarner at coinet.com]

I have a friend who is just getting started, and already she's asking
questions I cannot answer!!
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Here it is:
My aunt married a Mexican National, but he was already married in Mexico.
I found the marriage certificate. [I presume she means the aunt/Mexican
National]
Was she really married?
Mom said that my aunt was told to get a divorce.
What do I do?
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I'll pass along the answer, and try to get here to subscribe, soon.

Thanks,

FF