• June 2026 •

L+M Development Partners Data Breach

Last Updated on June 15, 2026

If your information was compromised in the L+M data breach, you may be able to start a class action to collect money for the harm you’ve suffered.

• Keep reading for more information

At A Glance

What's Going On?: Attorneys need to hear from people affected by the L+M data breach as they investigate whether a class action lawsuit can be filed.
What You Can Do: If you believe your information may have been compromised in the L+M data breach, fill out the form on this page to learn more about the investigation and how you can help.
Does This Cost Anything?: It costs nothing to get in touch or to talk to someone about your rights.
What Can I Get?: If filed and successful, a class action lawsuit could provide consumers with money for any harm resulting from the L+M breach.

L+M Data Breach: Lawsuit Investigation

Attorneys working with ClassAction.org are looking into whether a class action lawsuit can be filed in light of the L+M data breach.

As part of their investigation, they need to hear from individuals who had their information exposed in the incident, including those who received notice of the L+M data breach or otherwise believe they are affected.

L+M Security Incident: What Happened?

L+M Development Partners, a real estate development, construction, and property management company, has reported a data breach that may have compromised sensitive personal information.

A report submitted to the Massachusetts Office of Consumer Affairs and Business Regulation on June 11, 2026 indicates that Social Security numbers, medical records, and driver’s license numbers were among the information involved in the L+M Development Partners data breach.

Those whose information may have been accessed or acquired without authorization in the L+M data breach are being notified in writing (a sample notice is pictured below).

L+M has around $20 billion in development and investment and manages over 24,000 units primarily in New York and New Jersey through its subsidiary, C+C Apartment Management.

What You Can Do After the L+M Data Breach

If your information was exposed in the L+M data breach, attorneys want to hear from you. You may be able to start a class action lawsuit to recover compensation for loss of privacy, time spent dealing with the breach, out-of-pocket costs, and more.

A successful case could also force L+M to ensure they take proper steps to protect the information they were entrusted with.

Affected by the L+M data breach? Fill out the form on this page today.