My Ex Bf Is Taking Me To Court Over My Dogs 6 Months After The Breakup. What Can I Do To Prepare? What To Expect? [florida]

So my EX is suing me for the rights of my three huskies 6 months post breakup. So long story short me and my ex moved into a apartment on my birthday and three days later breaks up with me and I move back in with my parents. I took the dogs with me because I always took care of the dogs. He wanted to see the dogs but I told him I would think it about but after a while I though it was best for the dogs to not see him again. Especially after one day when he ask for them for the weekend (starting on Friday night)I did let them stay with him but the next day he called me to tell me to pick up the dogs first thing in the morning because apparently they were too rowdy and wouldn't let him sleep or relax at all. So I took that as a sign that he can't care for the dogs. So my questions is can he sue me for the dogs?

I have the following in my possession:

• Check number and bank statement for purchase of the dog from my bank account.
• AKC registration in my name.
• Microchip in my name.
• Vet bills dating back to the first visit including all vaccines and annuals.

I also work in the veterinary field the entire time I have own the dogs. He never paid anything for the dogs. I always groomed them or took them to a groomer. My only concern is that we paid for a fake service dog certificate online to get the dogs into the apartment for free. Does he have a case with the fake certificate? I just want some advice and what I should do to prepare for this lawsuit since its my first ever dealing its something legal like this.