Maryland Mold Law 2025: Landlords Must Comply — Or Risk Rent Escrow and Lawsuits

Maryland landlords have a new legal deadline.

Starting July 1, 2025, the Maryland Tenant Mold Protection Act (SB 856 / Chapter 539; Real Property § 8-220) imposes mandatory mold disclosure, assessment, and remediation requirements.

This is not optional guidance.
This is statutory law.

If your lease has not been updated, you are exposed.

What Is the New Maryland Mold Law?

The 2025 Maryland mold law creates three hard requirements for landlords:

1. Mandatory mold pamphlet disclosure at lease signing

2. 15-day deadline to conduct a mold assessment after written notice

3. 45-day deadline to complete remediation after assessment

For the first time, Maryland law gives tenants defined timelines they can enforce.

That means missed deadlines = leverage against you.

Requirement #1: Mold Disclosure Is Now Mandatory

Beginning July 1, 2025, landlords must:

• Provide the official Maryland mold informational pamphlet at lease signing

• Obtain tenant acknowledgment of receipt

• Provide additional copies upon written request

If you fail to provide this pamphlet, you weaken your legal position before a dispute even begins.

Outdated leases do not satisfy this requirement.

Requirement #2: 15-Day Mold Assessment Clock Starts Upon Written Notice

Once a tenant gives written notice of suspected mold:

• You have 15 calendar days to conduct a mold assessment

• The clock starts when written notice is received

• The rule also applies if code enforcement reports mold

This is a statutory deadline. Courts will look at the calendar.

A casual walkthrough with no documentation will not protect you in a rent escrow hearing.

Requirement #3: 45-Day Remediation Deadline

If mold is confirmed during assessment:

• Remediation must be completed within 45 days after the assessment

• If not feasible within 45 days, completion must occur within a reasonable time

• The underlying moisture source must be corrected

This law anticipates professional remediation standards and future regulatory oversight by the Maryland Department of the Environment (MDE).

Translation: documentation and process now matter more than ever.

Why This Law Increases Risk for Maryland Landlords

Before 2025, mold disputes were typically handled under general habitability law.

Now tenants have:

• A statutory assessment deadline

• A statutory remediation deadline

• Stronger leverage in rent escrow actions

• Clearer grounds for attorney involvement

If you miss deadlines, fail to document compliance, or rely on outdated lease language, you are exposed to:

• Rent escrow proceedings under § 8-211

• Code enforcement citations

• Breach of implied warranty of habitability claims

• Attorney’s fees

• Litigation pressure

The law has shifted power toward procedural compliance.

Who Pays for Mold Remediation?

The statute does not eliminate tenant responsibility.

Generally:

• Landlords pay when mold results from structural defects, plumbing failures, roof leaks, or building system issues.

• Tenants may be responsible when damage is caused or materially worsened by:

  • Failure to report leaks

  • Plumbing misuse

  • Excessive humidity conditions

  • Unauthorized alterations

But if your lease does not clearly preserve cost allocation rights, recovery becomes harder.

If Your Maryland Lease Was Drafted Before 2025, It Likely Fails Compliance

Many Maryland residential leases still contain:

• Informal “mold protocol” clauses

• No statutory deadline references

• No mold pamphlet acknowledgment language

• No structured reporting system

That is now a compliance gap.

And compliance gaps become courtroom problems.

Maryland Mold Law Compliance Checklist (For Landlords)

Before July 1, 2025, you should:

☐ Update your lease to include a statutory mold section
☐ Attach the required mold informational pamphlet
☐ Add tenant acknowledgment language
☐ Create a written mold reporting form
☐ Implement a 15-day tracking system
☐ Establish vendor relationships for remediation
☐ Train property managers on documentation

If you manage multiple properties, this must be standardized.

The Bottom Line

The Maryland Tenant Mold Protection Act is not just another disclosure requirement.

It creates enforceable timelines.

Landlords who update now will:

• Reduce disputes

• Strengthen eviction and rent escrow defenses

• Minimize attorney exposure

• Protect rental income

Landlords who delay will be reacting inside litigation.

Updated Maryland-Compliant Lease Forms Available Now

Our Maryland Residential Lease package has been updated to comply with:

• The Maryland Tenant Mold Protection Act (2025)

• The Maryland Tenants’ Bill of Rights

• Security deposit law updates

• Utility disclosure requirements

• Entry notice standards

If you own or manage rental property in Maryland, your lease must reflect the 2025 mold law.