My husband did some work in 2006 for an Ontario property owner on his residence.

He submitted a bill which has never been paid.

Can we file a lien againstg this property.

When in 2006? Month?

My advice is to get a Judgment - Small Claims or otherwise - if you are not already barred by the Statute of Limitation and then move against the debtors assets.

I think it's too late to file a Mechanics Lien.