Debbie Constantine

Managing Broker - New & Luxury Home Marketing Specialist


"My business is built through referrals, therefore my number one goal is to earn your business by developing a long-term relationship based on professionalism, respect and results. I look forward to working with you!"

Meet Debbie

Born and raised in the Pacific Northwest, Debbie Constantine has been a Mercer Island resident since 1967 and is a University of Washington alumna. She has been a broker or 14 years and spent time in banking and retail before joining the real estate industry. She is committed to providing individuals and families with a high standard of customer service and the finest negotiating skills, whether buying or selling. Clients who work with Debbie enjoy a relationship based on trust and expertise.

Debbie devotes her energies and efforts to every client’s needs. She combines dedication with hard work, along with a commitment to clients’ real estate requirements and concerns.

Debbie has 35 years of experience in sales and marketing. She takes pride in inspiring trust and building confident, strong and loyal relationships with her clients. Debbie holds herself to a high standard of customer service and during every transaction, particularly during the negotiation process, her priority is that clients walk away fully satisfied.

In her free time, Debbie likes to work out with her trainer, play tennis, run, watch football and travel.


Mercer Island

At John L. Scott, we understand that selling your home is a life event that requires the ultimate care and expertise. It requires a detailed strategy that is customized to your home, area, and market conditions. For us, just getting your home sold is not enough. Our goal is to get you superior results and convert our clients into raving fans. With over 87 years of innovation and success, we've seen more real estate markets than almost anyone else. What this means for you is that we understand current pricing trends, negotiations, and marketing to get your home sold for the best price possible in the least amount of time. We don't just advertise—we market your home. In today's day and age, the power of digital marketing is more important than ever before. Everything is mobile and everything is instant, so all of our technologies are created to embrace both. Our marketing reaches virtually one hundred percent of the buyers and engages them in the home search experience. John L. Scott has an exclusive federally trademarked program that is called Seller Listing Launch. It's all about creating a unique buzz around your home and tapping into the backlog of buyers while attracting new ones. There's a distinct John L. Scott advantage that truly sets us apart from our competition. Our personal representation produces exceptional results for our clients. Transactional excellence is what we do, but our higher purpose is living life as a contribution—at home, at work, and in the community. We look forward to showing you more in person.


“We met Debbie in Fall of 2016 via a recommendation from my new Seattle employer. Given the tough housing market in Seattle, it took us over 2 years to finally find the right home. Debbie coached and patiently guided us throughout this period without rushing or pushing us in any way whatsoever, while getting to know us better as well as making concerted efforts to fully understand our needs and constraints during this time. Instead of just sending us a barrage of listings or pushing us in anyway, she clearly took the time to propose only those that met most of our criteria. Her alacrity and patience in arranging showings (sometimes within the hour) never failed to amaze and gratify us, and ultimately resulted in a timely offer for the property we recently ended up buying. Debbie has been a delight to work with throughout, and practically became part of our family during this process. Having worked with multiple Realtors in other areas of the US before, we would have no hesitation ranking her as the #1 among them all – not only because of her depth of understanding of the Seattle real estate market (she grew up in and is intimately familiar with Mercer Island), but because she is someone who genuinely cares about making her prospective buyers happy with their purchase. We cannot thank her enough for her guidance and help throughout this trying process.”
– The Agarwals