L+M Development Partners Data Breach
Last Updated on August 31, 2026
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.
- 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 record data, and driver’s license details were among the information potentially 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 investments and manages over 23,000 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.
L+M Data Breach Notice
Published: June 15, 2026
Before commenting, please review our comment policy.
Featured In:
Who Is ClassAction.org?
ClassAction.org is a group of online professionals who are committed to exposing corporate wrongdoing and giving consumers the tools they need to fight back.
We've been reporting on the legal space for nearly a decade and have built relationships with class action and mass tort attorneys across the country.
