No, you do not have to surrender your old country's passport. But, if you visit your old country (the one that you claimed would persecute you if...

I129 for R1 visa

Usually, the site inspection occurs before approval.

Yes, USCIS regularly checks social media.

Is there a special process to become a resident if we have a special needs child. My wife and child are US citizens.

Your wife can sponsor you for a green card. It will be a complicated but doable process for which you should hire a lawyer. You will have to file...

My colleagues are correct, a child under 18 does not accrue unlawful presence.

Yes, you should list your OPT employment history. It appears that you are trying to make the filing yourself. You should consider having a lawyer...

No, you can find your receipt number on your online account home page, and a copy of your receipt notice under the Documents tab.

Yes, you may visit your husband in his country as long it is not the country from which you are seeking asylum.

Does Presidential Proclamation 10014 block L1A visa renewal also?

Since you were already on an L-1A visa when the Presidential Proclamation was issued, you should be able to renew your visa. Not all consulates are...

Can an employer file a H1 petition for me with 6 months left on H1B ?

Yes, an employer may file an H1-B for the remaining time.