Find the best construction attorney serving Middlesex County. The purpose of this chapter shall be to provide rules, regulations and standards to guide land subdivision and site development in the Borough of Middlesex.This post addresses the process for filing a construction lien in New Jersey against private residential property. Typically, the amount of retainage is expressed as a percentage of the contract price, or as a particular percentage of a progress payment. Fill in the blank Contract for Sale of Real Estate form formatted to comply with all New Jersey recording and content requirements. In a murky situation such as this, consultation with a construction lawyer may be particularly advisable. New Jersey Construction Lawyers. Find the best construction attorney serving Middlesex County.