It would be a good idea to file an AR-11 now, before you apply for naturalization.

I had a h1b approved for oct 31st to dec 31st. Now it’s expired,I never travelled to USA. If I apply now vl i b cap exempt?

If you never obtained H-1B status (which would entail you being in the U.S. and employed by the H-1B petitioner), then you have not been counted...

Fee for adjustment status base on marriage to US citizen?

Yes, there is a fee to file the Form I-485. The fee is $1,225.

My first name in my new passport not matching with the first name in my visa on old passport

If the visa and the passport have a different spelling of your name, you may have problems at the US port of entry.

Will it be problem if I go USA with error date of birth on visa??

You should bring this error to the attention of the consulate, and ask for a new visa to be issued with the correct date of birth.

What will be the household size (form I 864)?

The household size will include at least you, your wife, and your mother-in-law. If there's anyone else as described on the I-864 page where you...

Do I need to file i485 supplement A?

I think you've answered your question already. What is it about your facts that would require you to file an I-485 A?

H1 transfer with PERM pending

Yes, company A can file for the 7th year extension, once you have 365 days from the filing of the PERM application.

I’m over 21 and have overstayed my h1b visa. My parents are green card holders. Is there any way for me to adjust my status?

No, because you are out of status. If your parents file an immigrant petition for you, once your priority date is current you can consular process...

My re-entry permit expires next month but i am going to US mid march to apply for another re-entry permit. Is that okay?

Yes, you can apply for a new reentry permit while you are in the U.S. You can stay in the U.S. to have the biometrics taken, or you can depart and...