Construction Document Management in Maryland

The 120-Day Notice of Intent to Lien

In Maryland, a mechanics lien is not automatically created by statute; it must be established by a court. Under Real Prop. § 9-104, a subcontractor who does not have a direct contract with the owner must serve a written Notice of Intent to Claim a Lien within 120 days after doing the last work or furnishing the last materials.

This 120-day notice is a strict condition precedent to the lien right itself — not a step that merely narrows it. A subcontractor who fails to serve this notice within the 120-day window has no lien right at all.

What the Notice Must Include

Under Real Prop. § 9-104(b), the notice must be substantially in the following form:

• The name of the subcontractor
• A description of the building or property
• The total amount earned under the subcontract to date
• The amount due and unpaid as of the date of the notice
• A brief description of the work done and materials furnished, including the time when the work was done and the name of the person for whom it was done
• A declaration under penalties of perjury that the contents are true to the best of the affiant's knowledge, information, and belief

How to Serve the Notice

The notice is effective if given by registered or certified mail, return receipt requested, or personally delivered to the owner by the claimant or their agent. If there is more than one owner, the subcontractor may comply by giving notice to any of the owners.

If notice cannot be given due to absence or other causes, the subcontractor may, within 120 days and in the presence of a competent witness, post the notice on the door or other front part of the building.

Because this 120-day window starts ticking on your last day on the job site, establishing a concrete timeline is critical. MyCrewTracker assists Maryland contractors by using Daily Reports to create a verifiable, date-stamped record of when demobilization occurred, ensuring your back office accurately tracks the 120-day window and securely archives the certified mail delivery receipts.

The 180-Day Petition to Establish a Lien

Serving the 120-day notice is only the first step. Under Real Prop. § 9-105, every claimant — general contractor or subcontractor — must then file a Petition to Establish a Mechanic's Lien in the circuit court for the county where the property is located within 180 days of the last work or delivery.

Filing the petition does not create a lien. It starts a judicial process. The court reviews the petition and, if warranted, orders the owner served with a show-cause order and the petition papers. The owner then has 15 days to respond before any lien can attach.

What the Petition Must Include

Under Real Prop. § 9-105, the petition must include:

• The name and address of the claimant
• The name and address of the owner
• A description of the property
• The amount claimed and unpaid
• The dates labor or materials were furnished
• A statement of the facts supporting the claim

Maryland Lien Deadlines at a Glance

Missing a single deadline in Maryland can void your lien rights entirely. The table below summarizes the statutory deadlines every Maryland contractor, subcontractor, and material supplier must track.

How to Establish a Mechanics Lien in Maryland: Step by Step

The process below reflects the standard path for a Maryland subcontractor, supplier, or laborer seeking to preserve and enforce lien rights under Title 9, Subtitle 1 of the Real Property Article.

1. Log your last day of work. Both the 120-day notice and the 180-day petition deadlines run from the same event: the date you last supplied labor or materials to the project. MyCrewTracker's Daily Reports timestamp this automatically.

2. Prepare the 120-Day Notice of Intent to Claim a Lien (subcontractors only). Under Real Prop. § 9-104, the notice must include the amounts due, a description of the work, and a declaration under penalties of perjury.

3. Serve the 120-Day Notice. Send via certified mail, return receipt requested, or personal delivery to the property owner. If the owner cannot be located, post the notice on the building within the 120-day window.

4. Prepare the Petition to Establish a Mechanic's Lien. Under Real Prop. § 9-105, the petition must be filed in the circuit court for the county where the property is located.

5. File the Petition within 180 days. This deadline applies to every claimant — general contractor and subcontractor alike.

6. Respond to the show-cause process. Once the petition is filed, the court may issue a show-cause order. The owner has 15 days to respond before a lien can attach.

7. File a petition to enforce the lien within 1 year. Under Real Prop. § 9-109, the right to enforce any lien established under this subtitle expires at the end of one year from the day on which the petition to establish the lien was first filed.

8. Preserve all project documentation. Daily reports, delivery tickets, change orders, and photos become evidence in the enforcement action.

Documents to Preserve for a Maryland Lien Claim

Maryland courts require proof that you furnished labor or materials and that they were incorporated into the property. The following records are what you need:

• Signed contract or purchase order with the prime contractor
• Certified mail receipts for the 120-Day Notice of Intent
• Delivery tickets signed by an authorized site representative
• Daily reports showing crew on site and work performed
• Photo evidence of installed work (timestamped and geotagged)
• Jobsite sign-in logs and crew attendance records
• Invoices, statements, and payment applications
• Email or text correspondence about scope and payment
• Change orders and extra work authorizations
• Written demand letters and any response

MyCrewTracker stores all of these in one project record. When a lien deadline approaches, the back office can generate the timeline needed to prepare the petition without reconstructing months of field activity.

Maryland-Specific Gotchas

No lien exists until a judge grants one. Maryland is a judicial-petition state. Unlike most states where a lien attaches when work begins and is later recorded, Maryland requires a court order establishing the lien before it exists at all. This means you must go to court and prove your entitlement before you have any lien rights.

Two deadlines, one starting line. The 120-day Notice of Intent (for subcontractors) and the 180-day Petition to Establish (for all claimants) both run from the exact same event — the date the claimant last supplied labor or materials. There is no grace period based on the last day of the month.

The owner's payment defense is narrow. In Maryland, paying the general contractor in full does not protect the owner from a subcontractor's lien. If the general contractor doesn't pass the money down, the subcontractor can still establish a lien and foreclose — meaning the owner may effectively pay twice. The only exception is an individual owner building a personal residence on their own land, who has a defense of payment if they have paid everyone they contracted with directly.

A property sale can wipe out lien rights. A sale of the property before the lien is established can defeat it entirely. A "bona fide purchaser" who pays fair value without knowledge of the claim takes the property free and clear. Maryland courts have held that once "equitable title" passes — meaning the property is simply under a contract of sale — lien rights are cut off, even before closing.

The 15% Rule for renovations. For renovation or repair projects, a prospective lien claimant must demonstrate that the building was repaired, rebuilt, or improved by at least 15% of its value. New construction is exempt. If the threshold is not met, the project is not subject to a lien claim.

Lien rights cannot be waived in advance. Maryland prohibits subcontractors and suppliers from waiving lien rights by contract in advance of the work being performed. Such provisions are void as against public policy. This prohibition does not apply to contracts between the owner and general contractor, nor does it limit the ability to require executed lien waivers in exchange for progress payments.

The 1-year enforcement deadline is absolute. Real Prop. § 9-109 gives you exactly 1 year from the day the petition to establish the lien was first filed to file a petition to enforce it. Set two calendar reminders: one at 9 months, one at 11 months.

Construction defect statute of repose. Maryland's statute of repose for construction defects is 20 years from the date the entire improvement first becomes available for its intended use under CJP § 5-108. For architects, professional engineers, and contractors, the period is 10 years. Retain project records for at least 20 years.

Example Scenario: How Documentation Determines the Outcome

*The following is an illustrative scenario, not a specific case. It demonstrates how record-keeping affects outcomes in Maryland lien disputes.*

Consider a Baltimore HVAC subcontractor on a $500,000 commercial office renovation. The sub's last day of substantial work is August 15. Under Real Prop. § 9-104, the sub has 120 days from August 15 to serve the Notice of Intent to Claim a Lien. That deadline is December 13.

The sub prepares the notice on November 20, ensuring it includes the amounts due ($85,000), a description of the HVAC work, and a declaration under penalties of perjury. The sub serves it via certified mail on November 25. The green card returns signed on November 30.

Under Real Prop. § 9-105, the sub has 180 days from August 15 to file the Petition to Establish a Mechanic's Lien. That deadline is February 11. The sub files the petition on February 1. The court issues a show-cause order, and the owner responds within 15 days.

Under Real Prop. § 9-109, the sub has 1 year from February 1 to file a petition to enforce the lien. That deadline is February 1 of the following year. The sub files the enforcement petition on November 15, well within the window. The lien is enforceable.

Now consider the same sub who serves the 120-Day Notice on December 20 — seven days late. Under Real Prop. § 9-104, the sub has no lien right at all. The $85,000 owed becomes significantly harder to collect.

Documentation is what separates these outcomes. MyCrewTracker logs the last day of work, the notice service date, the petition filing date, and the daily reports that prove performance.

Maryland Prompt Pay Act (Real Prop. § 9-302)

Under Real Prop. § 9-302, Maryland law establishes statutory payment cycles for private construction projects. If the contract does not provide for specific dates or times of payment, the owner must pay undisputed amounts owed within the earlier of: (1) 30 days after the occupancy permit is granted, or (2) 30 days after the owner or the owner's agent takes possession.

If the contract does provide for specific dates or times of payment, the owner must pay undisputed amounts within 7 days after the date or time specified in the contract.

Once the contractor receives payment, it must pay its subcontractors within 7 days after receipt of each payment received for its subcontractors' work or materials.

What the Maryland Prompt Pay Act Covers

• Owners must pay contractors within 30 days of occupancy permit or possession (or 7 days if the contract specifies dates)
• Contractors must pay subcontractors within 7 days of receiving payment
• Remedies for violations include equitable relief, interest, reasonable costs, and attorneys' fees if the losing party acted in bad faith

To enforce these rights, contractors must maintain perfect documentation of when invoices were transmitted and received. MyCrewTracker offers a secure cloud repository where Maryland contractors can organize dated payment applications and formal communications to prove statutory compliance.

Maryland Retainage Law (Real Prop. § 9-304)

Under Real Prop. § 9-304, if a contractor has provided 100% security to guarantee both the performance of a contract and the payment for labor and materials, the retention proceeds may not exceed 5% of the contract price or 5% of any payment due from an owner to a contractor.

Retention proceeds from a contractor to a subcontractor may not exceed the percentage of retention proceeds held by the owner from the contractor. Retention proceeds from a subcontractor to another subcontractor may not exceed the percentage held by the contractor.

Final Release of Retainage

Owners on private projects must pay all retainage within 90 days after the date of substantial completion.

For public projects, a public body must release any retainage due to the contractor within 120 days after satisfactory completion of construction.

Relying on physical filing cabinets or localized hard drives for long-term retention exposes your business to catastrophic data loss. MyCrewTracker offers a secure cloud repository where Maryland contractors can organize and safely archive retainage records, ensuring audit readiness at all times.

Maryland Lien Waivers

Maryland law prohibits subcontractors and suppliers from waiving lien rights in advance of the work being performed. Such provisions are void as against public policy and will not be enforced.

However, this prohibition does not apply to contracts between the owner and the general contractor, nor does it limit the ability to require executed lien waivers in exchange for progress payments. This means:

• You cannot be forced to waive all lien rights before work begins
• You can sign a partial waiver when you receive a progress payment
• The waiver is only effective for the payment you actually received

What MyCrewTracker Does (and Does Not Do) in Maryland

MyCrewTracker is a construction documentation platform, not a legal service. Here is what it does for Maryland contractors:

• Logs first day and last day of work per project so you can calculate the 120-day notice and 180-day petition deadlines
• Stores certified mail receipts and Notice of Intent documents in the project file
• Records delivery tickets with photo and signature capture
• Captures timestamped, GPS-tagged site photos that document installation
• Generates daily report PDFs that serve as contemporaneous records
• Tracks retainage and payment dates for Prompt Pay Act compliance
• Archives project records for 20+ years to support construction defect defense

It does not draft Notices of Intent, file Petitions to Establish Mechanic's Liens in circuit court, or provide legal advice. Those steps require a Maryland construction attorney.