US Immigration from Argentina

We're married for 5 years and have a child. My husband was working and meeting the income requierement for CR1/IR1 visa, but his chronic illnesses got more severe these past months. He's looking into social security disability as his health limitations are not letting him work. Can he sponsor my CR1 visa being on SSD? We're about to submit the civil documents and pay fees for NVC, he's still working but would apply for SSD in a month and get approved in 6 months. We're new on this, I appreciate your answers

After our case got approved, we got an email from NVC saying we must pay the affidavit of support and IV fee, plus send all the civil documents from beneficiary and tax information etc. Only issue is we don't have all the civil documents yet, I must renew my passport, find a certified translator and translate my Birth certificate (it's not in English) Translate my police records, certify both translations AND we also need to save up to pay the fees as we don't have a lot of money. Is it mandatory to send all the documents and pay the fees right now? How long do we have to reply to their request? PS. Also is any other document that we must translate, and should they be certified by a Notary like I've been told? Thank you in advance for your answers.

How long after you got the welcome letter, you had to pay the Fees?

And are 3 or 2 fees?

Affidavit of Support/Inmigtant fee/ and am I forgetting something?

I have read people saying three fees, other people say we have to pay only two.

Please mention the vaccines that are mandatory as September 2025, I am CR1-IR1 beneficiary

I have probably 1 or 2 from my childhood records, but that was 43 years ago. Hope those are still valid?

I'm abroad. Husband is U.S. citizen living in the U.S. We got a RFE few weeks ago and I'm the beneficiary of CR1-IR1 visa, I get confuse reading people saying they did not sign the I-130A form because they are living outside the U.S. butI also read the form saying if I don't sign it can result in a denial. Can you please what should we do? As we don't want to get denied after waiting over a year. Thank you