Client is sole owner of a small construction company that routinely tears out and replaces driveways. He was referred to a homeowner (through other clients) who needed a new driveway. It was a one-day job. The quoted cost was around $6,500. One-half was paid up front with the balance due on completion. Home owner made excuses for failing to pay the second portion of the bill. When a lien was threatened the homeowner claimed no lien could attach since no pre-lien notice was given. A lien was nonetheless filed and payment still has not been made. Minn.§ 514.011 Subs. 4b seems somewhat ambiguous on the subject.