This is a criminal issue I would contact the DA and proceed with your divorce if your marriage was the first one since it is the only valid one. Good luck
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I agree with the other attorney. Bigamy would be a criminal matter.
In the meantime, rather than focusing your efforts on making sure the ex gets "charged", focus on finishing your divorce and getting permanent orders with regard to your custody and support. Then you can have Child Support Services do the work of going after him for the support.
You will be a better parent if you conserve your energies for raising your children rather than chasing after the ex.
Proceed with your divorce. Get a default entered against him. Report his activities to the DA here and in the other state. Get sole legal custody orders by filing a request for orders hearing. If you amend your petition, you will also need to serve him. This will delay your request for default, though. Suggest you seek legal counsel.
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