I’m a fourth-generation Oregonian and the Principal Broker of the Mahaffy Real Estate Group. For 17 years, I’ve had the opportunity to serve well over 500 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 be in a position to help make his client’s dreams become a reality. Every real estate transaction is unique just like every client’s needs and goals are.  Listening to people’s needs and helping them identify their goals allows Nick to create a plan for success tailored to each client.  Providing trusted, professional advice to his community and helping people achieve personal goals gives Nick great joy. Nick is honored to draw upon the Mahaffy Group’s 70 plus years combined experience in order to give trusted, professional advice to his 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 recent 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.



"My fiancé and I just recently bought our first home with Sue, and it was the most incredible experience! We went into the process not knowing much, and Sue made sure that we understood each step of the way and encouraged us all throughout! It really felt like she genuinely cared about her clients, and we really appreciated all of her personal suggestions and inputs. She was always extremely responsive and somehow magically brought out the best case scenarios every single time! It was far too obvious that she had the best reputation as an amazingly kind and proficient agent in Portland, and we only want to confirm that with this review!" -Cody & Heo, buyers

"We absolutely loved working with Sue, Dan and the rest of their team to buy our first home. Moving from out of state brought some complications and we felt supported all along the way. Our questions were always answered quickly and very thoroughly. Their knowledge made us feel that we were in the best hands possible to get a home in this tough market! Thanks for everything guys!" -Rebecca & Ryan, buyers

"My husband and I have bought and sold a lot of homes and Matt Mahaffy and his group are the best in the business. We cannot recommend them enough. If you are looking for a professional yet personable group that is truly in touch with the pulse of the real estate market give them a try." -Traci & Robert, sellers

"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

Nick was a phenomenal real estate agent for our first-time buying a home. He anticipated questions we would have before we even knew we had them! He made us feel very comfortable in what can sometimes be a very stressful situation. After only one time out viewing homes, Nick keyed on exactly what we were looking for, and he helped make our dream a reality. - Noah & Delaney, buyers

"Matt and his team were there with me every step of the way I really enjoyed the expertise and knowledge. Matt was very honest and helpful and letting us know what needed to be done to the home to get the best result as possible. He listed the home and it sold in 4 days, I couldn't have asked for  a better result." - Jim H, seller

"Sold my home after I'd already moved to East coast. Great neighborhood sense and interactive style. Took care of getting all house hold goods moved and all ends tied up. Effortless for me. A great person besides." —R. Simon, seller

"Matt (and his whole team) was excellent to work with, and very accommodating to my particular circumstances. They made sure to keep in contact with me and update me every step of the way; I felt incredibly comfortable having them handle my house sale." - Ashley, seller

"There are no words for how amazing Sue and her team are. Within 24 hours of us starting to look for our first home, Sue had managed to help us to get our first offer accepted, after a bit of negotiation. She knew exactly what levers to pull in order to get our offer accepted though there were a number on the table." - Kim K, buyer

"We can't recommend Nick enough. As new homebuyers, we had lots of questions and Nick was patient, clear and extremely collaborative. He has an intimate knowledge of the process, a wealth of experience with and information about Portland homes and made the whole process significantly more  digestible. He provided good guidance and great negotiations to get us the home of our dreams. Work with Nick - you won't be disappointed." — LD & SB, buyers

"Working with Sue Sullivan to find and purchase our new home not only exceeded our expectations of what a realtor should do, but opened our eyes to all the things a dedicated, knowledgeable, and hard-working agent and team could do. Sue took the time to understand what we wanted, and helped us  expand our search in ways we hadn’t considered, based on her familiarity with the areas and neighborhoods, as well as a thorough understanding of the market trends. In the rare instance she was unavailable, Matt and Nick filled in seamlessly, and Sara was efficient and professional behind the scenes." - Buyer in Sherwood

"Sue was recommended to me by a close friend who has been one of Portland's top mortgage brokers for decades. I asked him who he would trust if he was buying a home for HIS family. He immediately referred me to Sue Sullivan, and I'm SO glad he did! Sue is the consummate pro, and a genuine  pleasure to work with. She and her team consistently gave great advice, and helped me land a great house in a great neighborhood They were always available when I needed them, and had terrific insight of the local market. I can't recommend Sue highly enough!" - Buyer in Portland

"Nick helped us sell and purchase a new home. From start to finish we were completely impressed by his professionalism, dedication to us as clients, and willingness to go above and beyond for us for anything and everything we needed. He is kind and enjoyable to work with and advocated for us in every interaction. The family that purchased our home purchased it as is and offered us free rent back thanks to Nick's advocacy. Additionally, our offer was accepted on our new home and all repairs and requests we made were accepted. He even got them to cover our closing costs. Cannot be happier with Nick and the Mahaffy group." — A & R Peck, sellers and buyers

"Just completed my second real estate transaction with the Mahaffy group and wanted to especially thank Nicholas for all of his effort and the expertise he brought to the process. I have previously worked with Matt and Sue and their depth and experience always shines through. Nick's enthusiasm, level of skill and knowledge reflect competencies well beyond his age and experience -- I've worked with a number of agents in both Oregon and California and would place Nick in the top 5% of all professionals retained in the last decade. Kudos to Nicholas!" - Peter D, buyer & seller

"Nick Swann is professional, attentive, patient, and detailed. He always communicated with us even when he was still waiting for updates, just to keep us in the loop which we very much appreciated. He was transparent and honest about the houses we viewed and the offers we made... I would highly recommend Nick and the Mahaffy Group!" - Chris & Frances, buyer

"Extremely professional, knowledgeable, kind and great to work with. Selling our home could not have been easier! Matt and team did their research, advised with skill and priced the house to sell while still being competitive. We would work with Matt again in a heartbeat." — Devon & Liz, sellers

"For me, one of the key criteria for a realtor is regular and clear communications. Matt communicates very well. His advice during the negotiation stage was sensible and helpful." — B. Cunninghame, seller

"When you purchase a house, that's a pretty major purchase. You don't want someone who doesn't know their stuff or isn't very friendly. We've both bought and sold so many homes over the years, and this was probably the easiest, smoothest experience we could have had. We're actually selling for more than we thought it was worth. Add to that, you've got the warmth of Joe's southern charm!" - Kelly & Bruce, seller

"Sue is wonderful! We wish everyone could have her and her team as their realtor. Having just moved, we couldn't have had more support every aspect of our move (even referring a handyman to help with inspection issues). She is so energetic and so knowledgeable we didn't worry about anything related  to the sale. What Sue didn't handle herself, one of her support people was right there to help. It was like a well-oiled machine. Hearing some stories from people about their experience with a realtor makes us realize how lucky we were! We consider Sue and her team to be friends." — Bob & Marge, sellers

"All around amazing! I needed so much project management help on my recent sale and Sue was incredible. She is professional, experienced, available, responsive and a serious joy to work with! I would give her 6 stars out of 5 if I could. Highly recommend." - Angela & Joe, sellers




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