If you are now domiciled in Louisiana a Louisiana attorney can file for divorce for you in Louisiana. If he has already filed in Indiana then the first filed case will be heard and the other one will not unless there are different issues.
Every situation is different and you should consult your own attorney to go over all the particular facts in your case. The answer given is only intended to provide general guidance regarding rights and responsibilities.
A Louisiana attorney may be able to get you a divorce in Louisiana, but nothing else because it is unlikely that a Louisiana court would have jurisdiction over your husband. For a 20 year marriage, you will want to consult with an attorney in the county in Indiana were you resided. You should contact the county bar association for advice and a referral.
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