Question: If I am legally married and living in another state can I get a divorceif my spouse's whwereabouts are unknown 

Answer: You should be able too.  Even if you do it yourself there are different ways that your spouse can be served his walking papers.  Last known address or newspaper notice are twos ways that I know he can be served.  Look at it this way, if he doesn't respond or come back that makes the divorce easier.
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