Guy fell on neighbors property and is sueing me
I own a piece of commercial property in Markham. In March there was a late-season ice storm. Someone was coming onto my property but parked in the neighbors parking lot. When he got out of his car he slipped and fell. He happened to be parked in front of a vacant store. So he either thought he was in front of my store, or thought "how can I sue a vacant store?" so decided to sue my store instead. I have security footage which covers my parking lot which shows him walking onto my property but doesn't show the neighbor's property where he fell. There is also a witness who was in the store at the time who saw him fall on the neighbor's property. We have her name and number. I wasn't there at the time, I rent the store to a business so as the property owner I am being sued.
The guy tried to sue me right away and I talked to his lawyer and told him the facts and that lawyer went away. Now four months later he has gotten a second lawyer and they tell me they are going to file a suit against me. This is all very stressful, I'm sure I could win if I go to court with the evidence I have but what a pain it is. I don't want to have to fight off these bloodsuckers. Anyone have any idea about counter-suing?