I appreciate all the great suggestions!
I didn't even think that a will or power of attorney could be used! I will definitely work on finishing those up so we can include them. I never thought to ask for copies of the HIPPA releases, so that's going on my to-do list as well!
Taxes are....complicated. I misspoke in saying my account said we couldn't. She advised that we filed separately while he was still in England (2022 and 2023) because the deductions from filing jointly would not have offset the taxes owed for his income. We went through consular processing. We didn't live together at all until he moved here.
We scheduled an appointment with the DMV last week. First available is August 27th for his permit test. We will try to get him a state ID in the meantime but he might not get it any sooner than the permit. He didn't see the point in a state ID for the longest time since every establishment that wanted ID accepted his green card and/or his passport as a valid photo ID.
Never thought about using Amazon labels as evidence! I'll be digging around trying to find any boxes that might still be kicking around with his name on them. Thankfully he does get spam mail regularly with our address. And he has loads of bank statements for his own account with our address on it (including our joint account statements).
Utilities are still a no-go. AT&T does list our phone lines with our names on the bill, so his name is visible on the bill, it just isn't addressed to him (and it does list the date the line was opened, which was the day after he got here). National Grid said no again - only one name on the account at a time. Xfinity also said no, so I will include a printout of the webpage listing him as an authorized user on the account. We don't have a water bill (well water & septic system). I did manage to get him listed on the Heating Oil/Furnace maintenance account, and both of our names appear on that mail, so I'm hoping that one is enough when combined with the random bits of mail and bank statements. I've also been toying with the idea of switching garbage companies, so if I do I'm going to do it sooner than later and list him as the account holder. Even if it's a new account, it's something, right? Our current trash company doesn't send bills at all. I get a handwritten letter on their letterhead telling me if I missed a payment. There's never a name or account number listed, just our address.
We don't really use our joint account more than a couple bills because I'm the only one making any tangible income. He makes maybe $100 every couple months. I found it easier to just pay for things for us and the household from one of my accounts (usually already linked to wherever I am ordering it from). Any time we go shopping, we're together, so I guess we never really thought to use the joint account when we both knew I was paying for everything anyway. It seemed like a lot of extra work to keep shuffling money around just to look good on paper, but now I do regret not setting up more to pass through that account.
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Please try to hold more kindness and understanding in your heart. I mentioned in my post that I have ADHD (a cognitive disability recognized by the Americans with Disabilities Act, btw), and my husband has ADHD and Dyslexia. We both suffer from memory issues and chronic disorganization. Neither one of us thought the ID was such a critical step. Yes, we made a mistake in underestimating its importance, but we are doing our best. I hired an attorney for the I-130, the DS-260 and now the I-751 because I knew my disability has its limitations. She has informed me that the ID is extremely helpful but not critical. We are going to try to get it, but it's not the end all be all if we don't have it in time.