My application is based on marriage to a US citizen for 3yrs. I just don't know if I have to attend the interview with my spouse

Your citizenship appointment and test is all about you.

Is their a chance for her to get denial on her entry next week. is their any option I can complain USCIS and stop this Devil??

Making life hell for you is not going to stop her entry into the US. You should let you husband know that "if you are not happy no one is going to...

CAN I GET IN TROUBLE IF I MARRY HIM AND HE IS AN ILLEGAL IMMIGRANT?

Given the facts as you presented them and the clear lack of understanding of the immigration process, you should educate yourself by reading online...

Assuming your parents are still married to each other, only one form and fee is necessary.

The exception year will end in 2 weeks for my case I751

You can file for citizenship under the three year requirement but it will not be worked on until the decision to remove conditions has been made.

I changed my name, what is the process to change the green card and travel document? and how long it takes usually?

Submit a certified copy of the court order to USCIS with an I -90 and I-131.

Re-file the agent designation form with NVC.

Which visa we should apply and how can we change to immigrants status during our staying in US

Until one of your children turns 21 you may not derive immigration status from either.

How do I gain residency through my child?

There are no path exceptions to your child's age. All other options would depend based on facts you have not disclosed.

Do I put in the I130 form part D of item 2 that the petition was terminated or approved?

Answer that you filed and the petition was terminated.