NO, you do not need his permission. You would be smart to work with a lawyer. This would save you time in getting them both to the US.

Do I need any permission from us uscis before I can travel with my 18 months expanded conditional green card ?

No. The 18-month receipt is your permission.

Do I have any chances to get my citizenship?

This is not something that can be answered in this forum. You need to make an appointment with a lawyer ASAP.

When will my underage son be able to come to America ?

This is not enough information to answer your question. Consult with a lawyer.

What is a estimated time frame to process an I-130, if I'm married to a USC and we live inside the US?

100% you will be interviewed. I hope you have a lawyer.

Expired green card

It seems she likely forfeited her green card and abandoned her status...more information is needed. You should discuss with a lawyer how to proceed.

You are facing a one year license suspension, ignition interlock device and the other penalties that go with a DWI. Hire a lawyer.

What should I do to renew my EAD card when my previous EAD is lost?

There is only one way to obtain a new card. YOu must file the application.

Can I File for waiver to remove conditions before divorce is final but but green card it's about to expire?

You need to discuss this with a lawyer. Such advice cannot be provided in this forum.

I'm sorry, but your description is quite confusing. Your brother in law is an off duty cop who called 911 because of the way you were driving then...