@Heather Luu
Welcome to the forums...
As a rule, the final installment always needs to be paid once work is complete. I realize it's too late for that now but if you run into that again in your career just know.
I'll just be honest...you're in a very difficult spot and there isn't going to be a straight forward or easy way to recover your funds or get the work completed.
This is not a rare occurrence - this story is old as time.
The issue that most run into is actually finding the contractor once they vanish. I have had an investor on a window job pre pay 11k, contractor vanished, they sued, sheriff couldn't serve them because they couldn't find them.
From their perspective - they received their money, and if they are "storm chasers" East TN and NC have unlimited work right now. Your job is at the absolute bottom of their priority list...probably not even on their list. Even getting them back out there will be an uphill battle.
If it was me....I'd request the $45k to be refunded and everyone walk away. See if you can settle on an amount less than that.
The most likely outcome here....just speaking from experience. You will not get them to show up to complete the work, you will not recover your funds and you will have to move heaven and earth to make this "right"
1-See if you can settle with the contractor
2-File complaints with the BBB (assuming they are registered), file a complaint with the state attorney general
3-Sue
I used to believe there was some sort of over arching justice in the world, but then I got into real estate and became friends with RE attorneys. I quickly realized people get screwed all the time and there's nothing they can do about it.
I really do wish you the best of luck and very much hope this works out.