I did some planning, investigation and research work on a property in the Malibu area of Los Angeles County in California. I provided legal lot determination which is required by the planning department prior to development. I was contacted by SC Planners to do the work and now he is avoiding my emails for payment. I completed the notice of intent to file a Mechanics Lien but I want to make sure I am entitled to file a Mechanics Lien on the property. Please advise.