If the children are still under the age of 18 then yes she can take him for child support. The chances of getting back child support.
Her first step is to go to your local Child Support Enforcement Agency and asking for services. This is normally free but if her income is high they may request a 25.00 fee.
They will give her a packet to fill out she can give them his social security number and any other information she has. Fill the packet out and return it. They will get in touch with him and set up a hearing to establish support amounts and then the judge will court order it. At which time they can either garnish his wages or allow him to pay by check (Garnishment is much more common).
They will then send the money to her each month in the form of a check or though a child support debut card.
It is not difficult and they can help her.
She may also be entitled to other support so she may want to consider getting into contact with a lawyer to determine what all she is entitled to.
DISCLAIMER: Answers from Experts on JustAnswer are not substitutes for the advice of an attorney. JustAnswer is a public forum and questions and responses are not private or confidential or protected by the attorney-client privilege. The Expert above is not your attorney, and the response above is not legal advice. You should not read this response to propose specific action or address specific circumstances, but only to give you a sense of general principles of law that might affect the situation you describe. Application of these general principles to particular circumstances must be done by a lawyer who has spoken with you in confidence, learned all relevant information, and explored various options. Before acting on these general principles, you should hire a lawyer licensed to practice law in the jurisdiction to which your question pertains.
The responses above are from individual Experts, not JustAnswer. The site and services are provided “as is”. To view the verified credential of an Expert, click on the “Verified” symbol in the Expert’s profile. This site is not for emergency questions which should be directed immediately by telephone or in-person to qualified professionals. Please carefully read the Terms of Service (last updated February 8, 2012).