This page tracks arbitration cases where Mary Jean Sumell has represented consumers or employees. The Top Businesses section shows which companies this attorney has most frequently faced in arbitration. Click any case count to search the matching cases directly.
Top Businesses by Lawsuit Count
| Business | 2026 | 2025 | 2024 | 2023 | 2022 | All ↓ |
|---|
| Golden State Foods Corporation | — | — | — | — | 1 | 2 |
| Quality Custom Distribution Services, Inc. | — | — | — | — | 1 | 2 |
| Sigue Corporation | — | — | — | — | 1 | 1 |
| University of Southern California | — | — | — | 1 | — | 1 |
| White Fir Holdings, LLC | — | 1 | — | — | — | 1 |
| Weiss Accountancy Corporation | — | 1 | — | — | — | 1 |
| American Honda Motor Co., Inc. | — | — | — | — | — | 1 |
| Northrup Grumman Systems Corporation | — | 1 | — | — | — | 1 |
| Mitsui-Soko (U.S.A.) Incorporated | — | — | 1 | — | — | 1 |
| Ikigai Asset Management, LLC | — | — | — | — | — | 1 |
| T.Y.P Restaurant Group | — | — | — | — | — | 1 |
| Unical Aviation, Inc., a California Corporation | — | — | — | — | — | 1 |
| CorTech West Staffing LLC | — | — | 1 | — | — | 1 |
| Applied Composite Structures, Inc. | — | — | 1 | — | — | 1 |
| Epirus, Inc. | — | — | 1 | — | — | 1 |
| Aerotek, Inc. | — | — | — | — | — | 1 |
| Ralphs Grocery Company | — | — | — | — | — | 1 |
| Tarzana Treatment Centers | — | — | 1 | — | — | 1 |
| Pacific Southwest Financial | — | — | — | — | — | 1 |
| American Guard Services, Inc | — | — | — | — | 1 | 1 |
Disposition
| Disposition | 2026 | 2025 | 2024 | 2023 | 2022 | All |
|---|
| Settled | 1 | 3 | 2 | 1 | 3 | 18 |
| Abandoned | — | — | 1 | — | — | 1 |
| Dismissed | — | 1 | — | — | — | 1 |
| Withdrawn | — | — | 1 | — | — | 1 |
Dispute Type
| Dispute Type | 2026 | 2025 | 2024 | 2023 | 2022 | All |
|---|
| Employer Promulgated Employment | 1 | 2 | 1 | 1 | 2 | 10 |
| Employment | — | 1 | 3 | — | 1 | 10 |
| Other | — | 1 | — | — | — | 1 |
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