All states

    MD · Mechanics Lien Law

    Maryland Mechanics Lien Law: Deadlines, Notices & Filing Guide

    Maryland mechanics liens proceed through a court Petition under Md. Real Prop. §§ 9-104 and 9-105, with public works bond claims addressed in Md. State Fin. & Proc. § 17-108. The 180-day deadline and 120-day Notice of Intent both run from last furnishing.

    Maryland mechanics lien deadlines at a glance

    Preliminary / pre-lien notice

    Maryland does not require a preliminary notice on private projects generally, but sub-tier claimants must serve a Notice of Intent to Lien within 120 days of last furnishing before they can proceed with a Petition. Skipping this step can bar a sub-tier claimant from establishing a lien even if the later Petition is otherwise timely.

    Lien recording deadline

    A Maryland claimant must file a Petition to Establish Mechanics Lien within 180 days of last furnishing labor or materials, under Md. Real Prop. §§ 9-104 & 9-105. Sub-tier claimants must first serve a Notice of Intent to Lien within 120 days of last furnishing, making Maryland's process a two-step sequence rather than a single filing.

    Suit to foreclose

    Maryland's lien is described as 'inchoate,' meaning the Petition filed within 180 days of last furnishing itself initiates the court proceeding, rather than a separately recorded lien followed by a later foreclosure suit.

    Public-project bond claim

    A claimant not in direct contract with the prime contractor on a Maryland public works project must serve written notice of a bond claim within 90 days of last furnishing labor or materials. This bond claim process substitutes for a lien since public property in Maryland cannot be liened directly.

    Primary statute

    Md. Real Prop. §§ 9-104 & 9-105 · Md. State Fin. & Proc. § 17-108

    Who can file a mechanics lien in Maryland?

    Maryland lien rights extend to contractors, subcontractors, sub-subcontractors, material suppliers, and, where the statute allows, design professionals who furnished labor, materials, or services to the project.

    Overview of Maryland lien practice

    Maryland's lien system differs structurally from most states because it is 'inchoate,' meaning the claimant establishes the lien by filing a court Petition rather than recording a document with the land records. That Petition must be filed within 180 days of last furnishing under Md. Real Prop. §§ 9-104 & 9-105, and sub-tier claimants carry an additional prerequisite: serving a Notice of Intent to Lien on the owner within 120 days of last furnishing. Skipping that notice can prevent a sub-tier claimant from establishing a lien at all, so tracking both the 120-day and 180-day deadlines from the same last-furnishing date is essential. Because the Petition itself initiates the legal proceeding, there is no separate later foreclosure deadline to track the way there is in states with a traditional recorded lien. On public projects, where government property cannot be liened, claimants without direct privity with the prime contractor must serve a bond claim notice within 90 days of last furnishing. Correctly identifying the owner of record and the proper court remain important procedural details throughout.

    Common pitfalls on Maryland projects

    Skipping the Notice of Intent to Lien

    Sub-tier claimants who fail to serve this notice within 120 days of last furnishing may be barred from later establishing a lien through the Petition.

    Treating the Petition as a simple filing

    Because Maryland liens are inchoate, the Petition itself initiates a court proceeding rather than a routine recordation, which changes how the process should be handled.

    Missing the 90-day public bond notice

    Claimants without a direct contract with the prime contractor on public work must serve bond claim notice within 90 days of last furnishing or risk losing that recovery avenue.

    Maryland mechanics lien FAQs

    When must a mechanics lien be recorded in Maryland?

    A Petition to Establish Mechanics Lien must be filed within 180 days of last furnishing, and sub-tier claimants must first serve a Notice of Intent to Lien within 120 days of last furnishing.

    Is preliminary notice required in Maryland?

    Not generally, but sub-tier claimants must serve a Notice of Intent to Lien within 120 days of last furnishing before pursuing a Petition.

    How long do I have to enforce a lien in Maryland?

    The Petition filed within 180 days of last furnishing itself initiates the enforcement proceeding, since Maryland liens are inchoate.

    What about Maryland public projects?

    Claimants without a direct contract with the prime contractor must serve bond claim notice within 90 days of last furnishing labor or materials.

    Filing a Maryland mechanics lien or bond claim?

    My Lien Lawyer coordinates mechanics lien filings, bond claims, and construction collections in Maryland — directly or through our vetted local-counsel network. The first call is free.

    Not sure whether a service bureau is enough? See why a law firm matters.

    This page is general information and not legal advice. Statutes change — verify against the official text linked above.

    MaineAll statesMassachusetts