I completely understand your desire to move out of city limits so the AC restrictions will no longer apply with regard to Mac. I had a dog back in the 90's in Arizona, a shep cross who one night was being kicked by my neighbour who was drunk and her teeth grazed his calf in the scuffle. Smokey was delcared dangerous and I was given the choice of putting her down or to follow all of the rules and there were so many! We followed them all for a few years, including having to get her tattoed with a special dangerous dog letter and number combination on her tummy. But then thankfully, I moved back to Canada and at that point, she was able to start her new life without a 'record'. She was never dangerous and one of the sweetest dogs. I had her for 16 years and never regretted keeping her despite so many people urging me to put her down.
I'm so glad that you are hanging in there with Mac and I hope one day you will be able to move to a wonderful piece of acreage where the rules of AC will not control your life or his.