Thanks @eskielover and @divine1966!

That's great to know I don't need the marriage certificate to file. My husband asked for it months ago to give to his lawyer, so his lawyer has it. Since we were married in St Lucia, it could take some time to get a copy, but if I don't need it to just file, then great.

I would have to get a no-fault 1B divorce if I file. And I know my husband will drag his heels on filing with his lawyer as long as possible, so I might as well do it myself. I am going to go back online this morning to see what I need. If I still cannot figure it out, I will ask my lawyer for help.