A UCC-1 is a lien form filed to protect collateral. A lot of times they're filed by a bank against a business that borrowed from them, for instance if a farm takes out a loan for a new tractor, the bank will file a UCC-1 with that tractor as collateral. If the farm stops making payments, the bank can use the UCC-1 as proof that they can repossess the tractor. Anybody can file the UCC-1, but most people don't because they have no reason to.

AAA is the American Automobile Association. It's basically a club that anyone can join and they offer insurance, roadside assistance, things like that. I don't know if they still act as a travel agency or offer maps like they used to, but I think they still offer discounts to travel destinations. They are a private organization not affiliated with the government.

I'm not sure what NFCU is. My guess is Navy Federal Credit Union where I'm guessing he banks?

A 1099 is a form used to file federal taxes. It's usually used by independent contractors such as Uber drivers. It's similar to how hourly and salary employees file a 1040, and some people have to file both.