Cohen Milstein, a class-action law firm, is investigating the Pinnacle West Capital Corporation Retirement Plan because it may pay married pensioners benefits below the levels required by the Employee Retirement Income Security Act (ERISA). Retirees of Pinnacle West subsidiaries Arizona Public Service Company, Bright Canyon Energy, and El Dorado Investment Company are also affected.

Our firm has a long record of representing retirement plan participants in ERISA cases. We have obtained favorable settlements for participants in Wells Fargo, SunTrust, and T. Rowe Price plans, as well as victims of the Madoff Ponzi scheme. We currently represent participants in the AT&T Pension Benefit Plan, where we also allege that the pension plan underpaid married retirees. Learn more about our team.

If you’re married and receiving a Pinnacle West pension, your monthly payment may have been miscalculated. We’d love to chat with you very briefly to hear what your personal experience was both working at your company and with your pension benefits. To speak with us, please complete the form below or call Sydney Greenman, Paralegal, at (202) 408-4600. Submission of this form is for the purposes of inquiry only and does not create a binding attorney/client relationship.

Cohen Milstein recognizes the importance of your privacy and personal data. Information collected in this questionnaire is confidential and will not be shared or sold.

Our Team

Partner Michelle Yau has spearheaded some of the most significant ERISA class actions in the nation, She combines dedication to protecting her clients’ retirement assets with rare insight into complex financial transactions and actuarial issues, informed by her Wall Street and government experience.

Laura Older Rockmore is an Associate at Cohen Milstein and a member of the firm’s Employee Benefits Practice Group. In this role, Ms. Rockmore represents the interests of employees, retirees, plan participants and beneficiaries in ERISA cases across the country.

Daniel R. Sutter is an Associate at Cohen Milstein and a member of the firm’s Employee Benefits practice group. Previously, he was a Legal Fellow in the firm’s Employee Benefits practice, where he investigated, developed, and drafted complaints against major financial institutions for ERISA violations.


We’re collaborating in this matter with attorneys from Stris & Maher LLP, as well as Prof. Shaun P. Martin of the University of San Diego Law School.

In addition to completing the contact form above, please also feel free to contact us with any questions.

Contact Information

Sydney Greenman, Paralegal (email)
Cohen Milstein Sellers & Toll PLLC
1100 New York Avenue NW
Suite 500, West Tower
Washington, DC 20005
Tel: (888) 240-0775 or (202) 408-4600
Fax: (202) 408-4699