My first response is try to mend fences with your dad. It is quite extreme to be in a lawsuit with your dad.
Legally, if you negligently or intentionally damaged property that was not yours, the law can only reach back a limited amount of time to redress that problem. The basic time frame to bring a lawsuit for property damage in California is three years from the date of damage. Any damage done before that time cannot be the basis of a lawsuit unless your dad could not have reasonably discovered the damage during that time frame. In that case he would have three years from the date he discovered the damage or reasonably should have discovered it.
I hope you do not have defend yourself against a lawsuit brought by your dad. That would be messed up. If you did the damage, perhaps you might consider offering to help fix it? That would be taking the high road.
Good luck to you.
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