US Immigration from Saudi Arabia

Hello,

My friend is married to a U.S. citizen and they're beginning the process of adjusting her status to a green card. Is a scanned copy of her foreign birth certificate enough, or does it have to be certified or notarized in some fashion?

During my own process several years ago (which wasn't through marriage), I only needed to include a printed copy (as well as a translation and a certificate of translation), as per my lawyer. Don't know if anything has changed since then, so I thought to inquire.

Thanks in advance!

Hello,

I tried to find any posts or threads on this but nothing materialized. I was wondering if anyone knew there are any differences or advantages/disadvantages to submitting the N400 online or through the mail. And if covid stands the change any of those differences at all.