I’m a fourth-generation Oregonian and the Principal Broker of the Mahaffy Real Estate Group. For 20 years, I’ve had the opportunity to serve well over 700 families in the process of buying and selling real estate, almost all of them by referral, and all of them with different goals and objectives. I’ve assisted a single mom purchase her first home and I’ve guided a retiring seller as they transitioned out of a 74-acre farm stand business. I’ve helped business owners purchase their dream homes and investors sell apartment buildings. I’ve relocated a CEO into Portland and helped couples buy their first rental property. My current focus is taking care of my favorite clients and their referrals in the core of Portland and Sauvie Island.

Licensed in OR


Sue Sullivan’s passion for selling real estate spans nearly 30 years. As a Partner with the Mahaffy Real Estate Group, she serves a diverse client base interested in Portland’s neighborhoods. Her ability to create success for her clients’ home-selling and purchasing goals comes not only from her decades of experience but her philosophy on building strong relationships with everyone in the field –  lenders, escrow officers, contractors, economists, appraisers, and other brokers – so she can offer true expertise and inside knowledge to her clients. Recognized as a specialist and Top Producer in the Greater Portland Area real estate market, you can trust in her accurate assessments and guidance.

Licensed in OR


Nick Swann feels privileged to help make his client’s dreams become a reality. Listening to people’s needs and helping them identify their goals allows Nick to create a plan for success tailored to each client. Educating our clients and helping them navigate the complexities of a real estate sale so they can make informed decisions and evaluate risks is what Nick finds most rewarding.

Licensed in OR


Julia Monson is passionate about providing excellent customer service and professional guidance to her clients who have highlighted her responsiveness, attention to detail and dedication as reasons they love working with her. Julia’s favorite part of working in real estate is the people she has the opportunity to meet and build relationships with. She is proud to be a part of the Mahaffy Group Team and leverage the collaborative knowledge, experience and structure of the team, which allows her to provide the highest level of service to her clients.

Licensed in OR


Dan Powell brings to the team a broad and diverse background in managing real estate transactions.  Whether it’s a house, condo, raw land, or investment property, either buying or selling, Dan has had beginning-to-end experience, making a very important and technically complex process run smoothly. Dan has the experience, the systems, and the relationships to take the worries out of the process.

Licensed in OR


Alyssa brings a unique set of knowledge to The Mahaffy Group, including prior marketing experience with a local home building and remodeling company and as a college graduate with a double major in Business. Alyssa’s experience in the home industry means she understands the importance of developing long lasting relationships, which makes creating a marketing plan for each client and each home effective and personalized.


"Sue and her entire team were absolutely wonderful to work with and played a pivotal role in getting our offer accepted and closing on a house! My girlfriend and I are first time homebuyers and felt that we were in extremely qualified and caring hands. Sue was extremely knowledgeable of the market and neighborhoods; and she was a joy to work and tour houses with. She was able to answer all our questions in a educative and easy to understand manner, and has been very responsive throughout the whole process.

Her knowledge of the Portland area and market proved handy as we discovered what work has been done to the houses we toured. She was able to tell us with contractors give quality work and we can trust. She's been very honest and collaborative on any aspects that might need work within the house. As well as explaining level of importance as we move forward, and to put us in contact with exceptional contractors. We definitely hope to continue this relationship with Sue to continue improving our house and for any future needs. We would definitely recommend Sue and her team!" - John, buyers

"Matt will go above and beyond to assist you in the sale/purchase of your property. He accomplished both of these for me within a minimal amount of time. He is a very caring individual, who continues to keep in contact with clients even after transactions are completed. Matt is a rarity in modern  business dealings; integrity and honesty are at the top of the way he and his team do real estate business. He is a hard worker, as is his entire team. Besides that, he is a genuine nice person!" - Nan, buyer & seller

"My husband and I recently used Nick and his team at the Mahaffy Group to both buy and sell our properties. We were blown away at the quality of service, the attentiveness and responsiveness of Nick and Sue and the others, and how helpful and capable they all were. Nick explained in easy-to-understand details the home buying process, which was new for me, and a good review for my husband. He deftly helped us navigate the intense Portland market and negotiated fantastic terms on a beautiful new home that we closed on in September. Nick then helped us focus our efforts on updating our 110+ year old starter home and brought it on the market just in time to get us top dollar. We were incredibly thankful for and impressed with his market-savviness and expert guidance. We couldn’t be happier with our experience and the many personalized touches the Mahaffy Group provides. We will surely be return customers in any future home selling or purchasing endeavors!"- H&B, buyers & sellers

"Julia is amazing. She is straightforward, professional, quick to respond, and super easy to communicate with. She cared about what we were looking for and really kept our best interests in mind (even in moments of desperation, when as a buyer, you want to just throw your hands up and "settle" - she kept us on track and made sure we weren't sacrificing our desires). We had previously worked with a realtor in another state who did not advocate for our side of things, so having Julia was a HUGE relief as she is tough and won't let you get taken advantage of amidst the tough markets. I could go on all day. She constantly went above and beyond and I would recommend her to anyone! We are settled in our amazing home now, but I still ask her questions and she happily responds (haha sorry I'm annoying, Julia!). Her personality is very easy to get along with and she's super detail oriented - I don't know how she does it. She's the best and we are so grateful to have had her through the entire process. Thank you, Julia!!!"

- Tom & Joy, buyers