A mechanics lien allows contractors, laborers, and material suppliers in Massachusetts to secure payment for work or materials provided to improve real estate. Anyone involved in a construction project can file this involuntary lien, which is created by state law and perfected through recordings with the Registry of Deeds and a subsequent legal suit if needed. It is important to work with an experienced attorney, as the process varies by state and strict timelines must be followed for the lien to remain enforceable.