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About Cassy

As a native of Southern California, Cassy offers a seasoned knowledge of her city and an understanding of what makes each residential niche so special. Cassy’s repeat clients and her referral network are a true testament of her clients’ satisfaction.

As an experienced agent, Cassy understands that buying and selling is one of the biggest decisions in a client’s life, and she views representation and guidance of her clients through this process as a true privilege. Cassy genuinely values her relationships, providing excellent service and a commitment to work hard, listen and follow through.

With more than 30 years of real estate experience, Cassy Willis partners with her identical twin sister, Colleen Osman, and brother-in-law, Dave Osman. Together, they represent buyers and sellers in the Conejo and San Fernando Valleys, the Westside, and Malibu. The Osman Willis team has sold hundreds of homes incl. multi-million dollar mansions, within the San Fernando and Conejo Valleys, the Westside, and Malibu.

When not previewing properties or helping clients find their next home, you can find Cassy pampering her Cavalier King Charles spaniels, Oliver and Joey, or caring for her garden, painting, and RVing with her family and husband James. With an abundance of compassion for all animals, Cassy never hesitates to help injured, stranded or lost animals. She continuously donates to the Agoura Animal Shelter, the Cavalier King Spaniel Rescue and the Wildlife Animal Rescue.

Cassy Willis’ Recent Transactions