How to fire my contractor?

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My home was damaged by Hurricane Florence a few months ago so I hired a general contractor to manage my project from start to finish. We had a verbal agreement to be finished before Thanksgiving but he keeps saying he will have it done in a couple weeks and that "he won't leave me hanging" He also claims to be BBB certified but I checked and he isn't. I have really had to dig for any info on his company and finally found reviews from people encountering similar problems as well as hunting people down for unpaid money. He keeps asking for my insurance deductible but The contract says that isn't due until the work is completed. The contract is vague and basically only States I owe him money upon completion of work. He has been paid $7000 for demo, new roof, and putting up drywall as well as mold/ water remediation. There is no written scope of work or timeframe only verbal. I am getting out of the Military on Jan 17th and am moving out of state with my wife and kid so this place HAS to be done by then so I can get it rented out and not he  paying for a vacant home, not to mention I'll be losing my paycheck temporarily unitl I get a new job. Any suggestions? I have sent him an email today stating I was unhappy, he had until the 10th of Jan to finish and if he couldn't to let me know as I would hire somebody who could. I also listed what needed done and re done. How can I legally fire this guy so I can get a good contractor in to finish the job right??