About Us

Radhi Ahern

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Scott Kalmbach

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Wall Street Journal's Top
Real Estate Teams Nationwide 2015
Million in real estate sold
of Agents Across San Francisco + Marin

AHERN + KALMBACH is the top producing real estate team at Pacific Union International.  Our team is ranked among the top 1% of all agents across San Francisco and Marin. We have over 20 years of experience and have sold hundreds of millions dollars of luxury property in the Bay Area.

We provide our clients with astute market knowledge and tactical negotiating skills to give our clients leverage in every transaction. Our membership to the exclusive Top Agent Network and Marin Platinum Group gives us access to unique off market opportunities. Our discerning marketing campaigns are engaging and inspire buyers to visit our properties. We utilize the most sophisticated technology to tap into our vast social networks to reach the widest audience possible. We have a stellar reputation in the brokerage community from years of consistent professionalism and reliability and we put those relationships to work for our clients.  Our connections to the best architects, designers and contractors are an invaluable resource for our clients.

In 2015 AHERN + KALMBACH was ranked by the Wall Street journal as one of the top 250 real estate teams nationwide, for our track record of results. 

AHERN + KALMBACH supports our local and global community through our philanthropic commitments. Our past and present donations include the PU Community fund, Build On, Marin Valentines Ball, Raphael House, Kiddo and other important local charities. Through our partnership with Home for a Home, we donate a portion of our commissions in the name of our buyers for each home we sell.  Our clients love knowing their purchase of a home helped build a home in the poorest areas of Guatemala. 

  • Molly Halstenson

    Marketing Manager | Realtor


    License #01971179

    Innovative and thoughtful marketing programs are the cornerstone of building momentum and securing a wide audience for our listings. Molly works hand-in-hand with Radhi and Scott to ensure that listings feature magazine quality photography, that our newsletters project compelling market data and above all else, that our clients are well taken care of. Molly is well versed in all of the latest technologies that we employ to ensure the smoothest transaction possible. She helps our team be environmentally conscious by working towards a paperless transaction employing technologies such as Dropbox and Docusign. She also keeps our marketing current with social media outreach through Facebook, Instagram, Pinterest and our A+K website. Molly also represents buyers seeking unique properties in San Francisco and Marin and has great vision for a property’s potential. 

    Born and raised in Marin County, Molly has much expertise to offer about the Bay Area. She received her BA in Human Development at Sonoma State University, right in the midst of our beloved wine country territory. With a keen eye for detail, great people skills and a real knack for client service, Molly keeps all the gears running smoothly. 

  • Michele began working with Pacific Union in 2001 as a licensed real estate assistant and transaction coordinator where she has processed over 1,000 real estate transaction files. Today, she works full-time as a transaction coordinator working with the AHERN + KALMBACH team. Michele has an immense knowledge base of California real estate contracts and understanding the complicated disclosure laws that help protect buyers and sellers. Her attention to detail and dedicated support allows our real estate marketing professionals to focus on what they do best procuring and selling real estate. With Michele steering the transaction, we know that all of our deadlines will be met, our documents will be error free and our clients will be kept abreast of all of the important details. Michele is like a seasoned director behind the scenes on a movie set orchestrating all of the various elements so that a seamless and coherent story emerges in the end. We couldn’t do it without her!

    Michele was born and raised in Marin County where she still resides. She enjoys spending time with her family, hiking with her dogs, and volunteering at animal rescue organizations.

  • Mark A. McLaughlin is Chief Executive Officer of Pacific Union International, Inc. McLaughlin led the acquisition of Pacific Union in August 2009, and the brand enjoys an exclusive relationship with Christie’s International Real Estate, the premier global organization of residential real estate service firms.

    A visionary leader in the real estate industry for more than 20 years, the hallmark of McLaughlin’s successes has consistently been executive team leadership, early adoption of technology applications, open communication and teamwork with keen emphasis on quantitative goals, and exceeding client expectations. He has been highly effective in building dynamic organizations and developing successful business partnerships by establishing clear, measurable objectives for his team and clients. McLaughlin personally directs key strategic initiatives with intense passion and draws on various experiences to achieve elite performance.

    With the launch of Morgan Lane in September 2006, McLaughlin built the company in just three years to be Marin County’s most respected luxury brand. By nearly every measure, including productivity per professional of $13 million per year in 2009, Morgan Lane was revered as being at the pinnacle of the Marin County market.

    Since 2009, McLaughlin has grown Pacific Union from $2.2 billion in total sales volume to $7.63 billion in 2015. In addition, McLaughlin also drove initiatives to develop joint ventures in the mortgage, insurance, and property management service lines to benefit Pacific Union’s clients.

    Before the Morgan Lane startup, McLaughlin served as the interim president of Sperry Van Ness International, an Irvine, California-based commercial real estate firm. McLaughlin directed the high-octane growth of Sperry Van Ness, developing and executing strategies in 2002 to grow from 100 professionals primarily in Southern California to over 700 nationally in just 2 1/2 years.

    McLaughlin previously served as the first executive recruited to LoopNet, Inc., initially as vice president, Sales and Business Development for LoopNet, Inc., the world’s leading online real estate marketplace. He also served as chief operating officer and directed the repositioning of LoopLender.com. Recruited by LoopNet’s founder, his business acumen in commercial real estate helped direct LoopNet’s sales strategy to 300-percent growth during the peak of competitive threats from 1999-2002. LoopNet went public on the NASDAQ and later was acquired by its rival Co-Star (NASDAQ: CSGP).

    In previous real estate experience, McLaughlin held key management roles with Jones Lang LaSalle (NYSE: JLL) and Colliers International. At Jones Lang LaSalle, a global real estate advisory firm, McLaughlin was senior director, Corporate Advisory Services Group for the San Francisco region. In this capacity, he was overseeing business unit operations for Valuation, Tenant Representation and Capital Markets Consulting practice groups. McLaughlin grew revenues in every position he managed.