Mary Boisselle
Residential Real Estate Broker
Certified Probate Specialist
Philosophy and Personal Touch
Mary’s approach to real estate is rooted in her unwavering commitment to clear communication, professional expertise, and compassionate care. She ensures that her clients remain informed and confident throughout every step of the process while delivering meticulous, high-quality service in all transactions.
Mary goes beyond simply managing the logistics. She provides thoughtful support that acknowledges the emotional realities of significant life transitions. Her clients and colleagues frequently commend her for being professional, detail-oriented, and approachable, with a remarkable ability to ease even the most overwhelmed individuals.
Mary draws inspiration from Maya Angelou’s timeless words: “I’ve learned that people will forget what you said, people will forget what you did, but people will never forget how you made them feel.” This philosophy is at the heart of Mary’s work, guiding her dedication to creating meaningful client experiences where every individual feels supported, respected, and truly heard.
A Specialization Rooted in Experience
Mary’s decision to specialize in probate real estate stems from her personal experiences with the emotional and logistical complexities families face during times of loss. She understands firsthand the delicate balance required to manage these transitions, which is why she has dedicated her career to providing clarity, care, and expert guidance.
Known for her calm professionalism, attention to detail, and empathetic approach, Mary guides her clients through the probate process and other real estate transactions with ease. Her goal is to make every step as smooth and stress-free as possible, empowering her clients to focus on what matters most during challenging times.
Real Estate Broker & Certified Probate Specialist
With a steadfast commitment to serving her community, Mary Boisselle has been a trusted resource in the Seattle and Eastside regions for decades. A Washington State native, Mary’s professional journey began in 1984, providing full-spectrum services, including accounting, professional organization, and personal concierge services. Her extensive background in helping businesses and individuals navigate complex challenges has earned her a reputation as a knowledgeable and dependable partner.
Mary’s transition into real estate was driven by a passion for connecting with people and a heartfelt desire to support clients during significant life transitions. As a Certified Probate Real Estate Specialist (CPRES), she offers a unique approach that combines her expertise in organization, project management, and creative problem-solving with her deep compassion for her clients.

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Mary Boisselle, CPRES
Residential Real Estate Broker & Certified Probate Specialist
Serving Seattle, the Eastside, and Surrounding Communities
Mary Boisselle has spent over 20 years helping buyers, sellers, and families navigate Washington's real estate market, including the complexities of probate and estate transitions. Her background in startups and business operations gives her a sharp eye for contracts, legal details, and the fine print that can make or break a transaction.
As a Certified Probate Real Estate Specialist (CPRES), she brings hands-on experience to situations that require precision, patience, and care. She is affiliated with Keller Williams Greater Seattle, part of Keller Williams Realty — the world's largest real estate franchise by agent count.
Her clients include first-time buyers, downsizers, investors, and personal representatives managing inherited property. Whether the situation is straightforward or complicated by probate court, family dynamics, or tight timelines, Mary handles the details so you don't have to.
If you're looking for someone who knows the Greater Seattle market, communicates clearly, and treats your transaction like it matters, reach out. No pressure, just honest guidance.
Let's Connect
Monday - Friday | 8 AM - 8 PM Pacific
(425) 500-2648
Mary@MBRE.llc
www.MBRE.llc
NW MLS 132881
WA RE License 22006466
Brokered by Keller Williams Greater Seattle
Equal Housing Opportunity
Fair Housing Act
REALTOR | MLS