CClaimWatch
Plaintiff counsel in 5 cases

Mark Samuel Greenstone

Greenstone Law APC

Address of record
1925 Century Park East, Suite 2100, Los Angeles, CA 90067, NA, 310-201-9156
Email
mgreenstone@greenstonelaw.com
Phone
(310) 201-9156
Fax
Fax 310-201-9160

Contact details as filed with the court in the cases below.

5
Cases tracked
5 active · 0 settled
—
Plaintiff-side recovery
Disclosed settlement funds
—
Defense-side exposure
Resolved in settlements
0
Cases with values
of 5 tracked

Case history

Publicly tracked matters where this attorney is listed as counsel.

Plaintiff counselActive litigation — no settlement yet

Hilton Domestic Operating Company Personal Injury Class Action

This proposed class action alleges personal injury claims against Hilton Domestic Operating Company Inc. Based on the nature of suit coding (360 P.I.: Other), the complaint apparently concerns injury allegedly suffered by the plaintiff in connection with Hilton's operations or premises. Without access to the full complaint, the specific allegations cannot be determined, but the case appears to involve claims that could affect ordinary customers or guests.

Filed
January 13, 2026
Represents
Alexandra Ferrer
Plaintiff counselActive litigation — no settlement yet

Hilton Worldwide Holdings Data Breach Class Action

A proposed class action has been filed against Hilton Worldwide Holdings Inc. in which the plaintiff alleges harm related to a data breach or privacy violation affecting guests or account holders. The case is classified under Personal Injury/Other, suggesting alleged injury or damages flowing from Hilton's conduct regarding guest or customer data.

Filed
December 5, 2025
Represents
Alexandra Ferrer
Plaintiff counselActive litigation — no settlement yet

Mint Mobile Class Action

A proposed class action against Mint Mobile, LLC, apparently concerning statutory claims under federal law. The plaintiffs, Greg May and Natalie Fliegelman, have filed a first amended class action complaint, and the court has denied a motion to dismiss without prejudice while the parties engage in mediation. The lawsuit appears to be brought on behalf of a putative class of Mint Mobile customers or account holders, though specific allegations are not detailed in the docket text.

Filed
April 9, 2025
Represents
Greg May, Natalie Fliegelman
Plaintiff counselActive litigation — no settlement yet

Lush Handmade Cosmetics Fraud Class Action

A proposed class action against Lush Handmade Cosmetics LLC, apparently asserting fraud claims related to its cosmetics products based on the 'Other Fraud' nature-of-suit code. The docket reflects a protective order and a scheduled jury trial, but does not detail the specific alleged misrepresentations. These are allegations in a newly filed case, not proven facts and not yet a settlement.

Filed
October 11, 2024
Represents
Kelly Keskinen
Plaintiff counselActive litigation — no settlement yet

Nissan Defective Product Class Action

A proposed class action has been filed against Nissan North America, Inc., apparently concerning a product defect under contract product liability. The lawsuit alleges that Nissan vehicles may have defects affecting consumers. These are allegations in a newly filed case, not proven facts and not yet a settlement.

Filed
March 6, 2024
Represents
Lauren Anderson, Walid Antonios, Fred Balsam, Calvin Wiley

“Recovery” and “exposure” refer to total disclosed settlement funds in associated cases, not money personally won or lost by an attorney. Settlements generally resolve disputed allegations without a finding that either side won. Data comes from public court dockets and may be incomplete.