Contractor Threatened Lein on Property

[Ryan Copeland]

I'm getting rid of my contractor for being extremely behind schedule and sub-par work. We have a contract in place that states that a 10% penalty is applied for each week that he late past the agreed upon completion date.

Yesterday he stated that he would put a lien on my property, which I still have to get other tradespeople to come in and finish the job.

If he does file a lean, what type of fight/battle am I looking at?