If the new bill passes and country cap get removed,what would happen to cases with pending I-140/I-485?Should they stay pending?

The new legislation will be accompanied by rules which will address this issue. Right now, it is pure speculation since the law has not changed.

RENEWAL OF PERMANENT RESIDENT CARD

You can renew your green card even after it has expired. Yes, renew it before applying for citizenship.

This was already asked and answered. More facts are needed and it sounds as if you need personalized legal advice.

Asking for advice

More facts are needed and it sounds as if you will need personalized legal advice.

Can i?

Yes, but the issue of your marrying while on a B2 may arise. Get expeienced legal help to avoid or mitigate problems.

Can i be denied form i 485 ?

USCIS will normally respond by providing a list of missing information and documentation.

What should i do?

You need to get legal advice as to the reason for the denial and the refile properly if it cannot be fixed.

I-824 instructions state that only the employer (I-140 Petitioner) has to file I-824 on approved I-140, is it correct?

Follow the instructions. Your employer must file it.

Selected as the best answer

Will i be prosecuted for living in the same house my boyfriend is harboring undocumented immigrants in?

There is an argument that you are knowingly harboring since they are in "our basement".

What can i do to have get a greencard in the USA?am an A-2 visa holder valid till 2022

You should hire an attorney to help you with your paperwork and maintain your A-2 status.