In Ohio, the maximum amount of the small claims court is $3,000. So your case will be in normal civil court. That means, both you and the landlord can bring lawyers to the court. You need to get a lawyer if really fighting in court. If you have no lawyer, the landlord has, it is difficult for you to win.
Why didn't you sue them when leaking took long time? Consulting with your lawyer, possibly you still has chance.