Ontario Workers’ Compensation Law Firm
Updated: 03/02/2026
Areas of Practice
- Workers’ Compensation
Firm Information
Overview
At Rose, Klein & Marias LLP, in Los Angeles, California, we represent individuals whose lives and livelihoods have been affected by injury, unsafe conditions and unfair treatment in the workplace. For decades, we have focused on protecting the rights of working people and families facing serious legal challenges, providing experienced advocacy grounded in preparation and personal attention.
Our experienced attorneys handle a wide range of matters, including workers’ compensation, personal injury and motor vehicle accident claims. Our practice also includes cases involving dangerous and defective products, employment law and discrimination, and asbestos and mesothelioma. By addressing both injury and employment-related issues, we are able to guide clients through complicated legal systems while focusing on their long-term stability and recovery.
Our firm’s history dates back to 1936, when attorney Victor C. Rose began practicing law in Los Angeles. Alfred M. Klein joined in 1940, followed by Eugene Marias in 1946, forming the foundation of a practice that has lasted for generations. Since its early years, our firm has remained committed to standing up for clients against powerful employers, insurance companies and manufacturers.
We believe effective representation begins with listening. From the initial consultation, we take time to understand how an injury or workplace dispute has affected a client’s health, income and future. We explain legal options clearly, outline realistic expectations and develop strategies tailored to the specific details of each case.
At Rose, Klein & Marias LLP, we combine a long-standing legal tradition with focused, client-centered advocacy. We are proud to serve individuals across Los Angeles and throughout California and remain dedicated to helping our clients pursue justice, accountability and financial security as they move ahead.
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Contact
Additional California Locations
Cerritos, CA (29.5 miles)
12800 Center Court Dr.
Suite 150
Cerritos, CA 90703
Phone: 562-606-0348
Fax: 562-436-6157
Email: Send a message
Websites:
15910 Ventura Blvd.
18th Floor
Encino, CA 91436
Phone: 213-784-2801
Fax: 213-623-7755
Email: Send a message
Websites:
Los Angeles, CA (Main Office)
801 S. Grand Avenue
11th Floor
Los Angeles, CA 90017
Phone: 213-784-2801
Fax: 213-623-7755
Email: Send a message
Websites:
3536 Concours
Suite 210
Ontario, CA 91764
Phone: 909-581-9476
Fax: 909-944-1722
Email: Send a message
Websites:
27240 Turnberry Lane
Suite 200
Valencia, CA 91355
Phone: 805-290-4882
Fax: 213-623-7755
Email: Send a message
Websites:
877 S. Victoria Ave
Suite 205
Ventura, CA 93003
Phone: 805-290-4882
Fax: 805-642-9627
Email: Send a message
Websites:
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