Marcus & Millichap

Rosaleen O'Sullivan


Rose O’Sullivan serves as an Investment Advisor for Marcus and Millichap Encino. She specializes in the sale of commercial properties in the San Fernando Valley and greater Los Angeles area. Rose has extensive experience in the sale of investment and owner-user office and industrial properties, as well as significant experience with retail and multifamily.

Rose enjoys long term relationships with her clients, helping them to build generational wealth for their families through sound commercial real estate investments. She focuses on maximizing value for clients as they navigate the complex real estate market to achieve their financial goals. Rose graduated magna cum laude from the University of Southern California in 2011, with degrees in English and International Relations. In addition to her investment sales experience, she has substantial experience in multifamily property management and leasing in Los Angeles and Ventura counties.

Rosaleen O'Sullivan

Rosaleen O'Sullivan

Tel: (818) 212-2792
Fax: (818) 212-2710

License:  CA  01904175

Member - National Office and Industrial Properties Group

Prior to joining Marcus and Millichap, Rose spent several years working in her family’s property management business, where she gained hands-on experience in Los Angeles commercial real estate from the principal's perspective. She also spent several years working as an executive recruiter in Houston, Texas, where she consistently achieved over $2 million in revenue annually. 


Transactions Closed

  • 6930 Owensmouth Avenue

    6930 Owensmouth Avenue

    Office Vacant/User

    Canoga Park, CA
    Price: $1,965,000
    Size: 7,980 sqft
    Cap Rate: 6.60%

  • 7318 Topanga Canyon Boulevard

    7318 Topanga Canyon Boulevard

    Office Medical

    Canoga Park, CA
    Price: $2,150,000
    Size: 8,000 sqft
    Cap Rate: -0.49%