I acted as a sales rep for a pergola build with solar attached to the canopy/roof. I subcontracted myself to source labor/materials for the build when the solar company became backed up with too much work. The documents signed are for the solar system and client agreed to the pergola and system to be installed. Client was sent plans, given notice I was filing them with the city as what would be built on his property, and he replied affirmatively. I spent 4 days (February 7th and 11-13th) building the pergola with my team. The moment we were completely done with the pergola the client claimed it was not what he wanted and not what he agreed to. Disagreement ensued. I was kicked off the property and I left. Client has been unresponsive for a week. The financing was structured that the client would not pay anything out of pocket until solar end was completely installed and the system turned on. The client has not allowed the inspection for the Pergola permit yet. Can I file a mechanic’s lien? When should I give him a notice of intent to put a lien on his property? What are the next steps I can and should take?