I have an ongoing issue with a roofing company that was suppose to Re-Roof my House 11 months ago. They have made several mistakesHow can you help me?

I own property with my brother and sister. We needed a new roof. My niece works for a roofing company so we chose to go with that company. they started the process and then were shut down by the county for 7 mistakes. that was 11 months ago. In the mean time they had to get a GC to do more work. That took several months looking for someone to do them a favor since they made mistakes and didn't want to hire a GC to get the job done right, they hired a friend of a friend to do the work, took months to get plans from an engineer, the GC sent in for the permit, they got denied because of lack of correct paperwork, The GC tried to get us to change the original plans of the house to make it easy for them to do. Now after no communication from the roofing company i called the GC from the phone number i found on the permit, after 4 months they said they didn't want to handle the job. We paid the Roofing Contractor Company approx $10,00.00 dollars and no other work has been performed.