Christie’s affiliate adds five top agents in Northern California

Christie’s International Real Estate Sereno, the largest locally owned and operated independent real estate brokerage in Northern California, is continuing its growth with the addition of five top-producing agents — formerly with Intero Real Estate Services — to its South Santa Clara County operation. 

Joining the firm’s Morgan Hill, California, office are Karen Nelsen, Stephanie Nelsen-Alanis, Patty Filice, Christina McDermott and Judy Guardino. Together, these agents represent combined lifetime sales of more than $2.5 billion across 3,500-plus homes sold. 

“This is a transformative moment for our South County presence,” Chris Trapani, co-founder and CEO of Christie’s International Real Estate Sereno, said in a statement. “The collective reputation and experience of this group, combined with our investment in a new Morgan Hill office, reinforces our long-term commitment to this vibrant and growing community.” 

Fueled by sustained momentum and increased market demand, the firm also announced it’s establishing a new, larger Morgan Hill office to better serve the needs of clients and agents in the region. 

“I know that who you align with matters,” Nelsen said. “This move isn’t just about changing signs, it’s about continuing to grow with purpose and passion with a company that aligns with my goals, and the level of service that I strive to provide to each and every one of my clients.” 

The newly added agents said their decision to align with Christie’s International Real Estate Sereno signals the brokerage’s continued growth and appeal to professionals in the region.

“Karen Nelsen and Patty Filice are two of the most respected and accomplished real estate professionals in South Santa Clara County,” said Nancy Robinson, vice president of sales for Christie’s Sereno. “With more than four decades of experience each, their reputations for integrity, market knowledge, community leadership, and commitment to clients are unmatched.

“It’s a privilege to welcome them to our company — their presence is not only a tremendous addition to our organization but a meaningful moment for our entire market.”