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Erica Johnstone is an attorney at Ridder, Costa & Johnstone LLP in Covina, California, where she focuses her practice on general practice matters and provides clients with thoughtful, dependable legal guidance. Serving individuals and businesses throughout the region, Ms. Johnstone is committed to helping clients navigate a wide range of legal concerns with professionalism, clear communication, and practical strategies tailored to each client’s needs. Her approach reflects a strong dedication to delivering responsive service and building trusted relationships with the people she represents. As a member of the California Bar, Bar Number 4536629, Ms. Johnstone brings a client-centered perspective to her work and understands the importance of addressing legal issues efficiently and effectively. She works to help clients make informed decisions at every stage of the process, whether they are seeking advice, support, or representation in general legal matters. Known for her professionalism and approachable manner, Ms. Johnstone strives to provide legal solutions that are both reliable and grounded in her clients’ goals. Based in Covina, Ms. Johnstone is proud to serve the local community through diligent advocacy and attentive counsel. At Ridder, Costa & Johnstone LLP, she remains committed to upholding the firm’s standard of quality representation while guiding clients with care, integrity, and a strong focus on results-oriented service.