No - there is no basis for ex to impute duty to your husband; However, you will continue to owe the child support if it isn’t paid unless you get...

You have 100% possession and enjoy full use of property so I say expecting him to pay 1/2 when he has no use and also has to rent his own place...

Yes - transportation is usually shared.

Probably file fir divorce with Request for Order for shared custody

You cannot take them out of the country without written consent of both parents.

Your dad can just informally give your GM a document saying that he agrees for her to have temporary custodial control - assuming your dad has...

……and if the children are in school, request a “seek work” order for their mother.

…and put in a change of address at the post office and a notice of change of address filed with the court.

It sounds like you can prove that you were not at the location that the attorney declared he served you in which case you show up at the MSC with...

I suggest you find a friend’s sofa to crash on - and start looking for a job.