In this section:     About KMO Overview  |  The KMO Team

About KMO - The KMO Team

The KMO Team members are leaders in the community, whether serving on an Education and Arts Foundation board, as officers in Realtor organizations, in the Damascus City Council, part of the executive team for the Historical Society, the Downtown Development Assn, or the Historic Downtown Gresham Business Assn., we are at the forefront of our East Metro communities.

15 NE Third Street
Gresham, Oregon 97030

Phone: (503) 661-8000
Fax: (503) 661-7400

Sue O'Halloran, BrokerSUE O'HALLORAN - Principal and Principal Broker

Sue O'Halloran, as Principal Broker and co-founder, guides the KMO crew. Sue's real estate career covers nearly 40 years in all aspects of the industry. She is a leader on local and state levels, bringing insight to real estate issues and incorporating "best practices" to KMO client services. Beginning the early years in residential sales and management for investors, she moved on into commercial real estate and working with organization and government clients, such as City of Portland, Metro, Wallace Medical Concern, Cities of Gresham and Troutdale, Gresham-Barlow Education Foundation. In recent years Sue has worked in residential and commercial project development with private investors, focusing on properties in our East Metro communities. 

In recognition of Sue's contributions to and activities in the community and real estate industry, many awards have come her way including Gresham Citizen of the Year; Oregon Assn. of Realtors Distinguished service Award; twice Oregon Council of Residential Specialist of the Year; Gresham Area Chamber of Commerce appreciation and Golden Note Awards, and City of Gresham Outstanding Volunteer to name a few.

Active in the Gresham Area Chamber of Commerce and East Metro Association of Realtors, each as a past president, and current President of the Friends of Leach Botanical Garden, Center for the Arts Foundation (Gresham), and East Metro Economic Alliance, Sue has established her reputation as a "go to" and "get done" business and community leader.

(503) 661-8000 Direct

Mary Ann Meyers, BrokerMARY ANN MEYERS - Principal

Mary Ann Meyers, co-owner and founder of KMO, has been in the real estate management world beginning in 1982.  Mary Ann's specialty is in managing residential properties for investors from all over the world.  As a member of the National Association of Residential Property Managers, Mary Ann keeps abreast of the constantly changing world of statutes, rules and regulations governing residential rentals and landlord/tenants.

Year of experience give Mary Ann the skills to evaluate property rental values and in assessing conditions and renovations to maximize income potential.  Fair housing and habitability, evaluating tenant applications and enforcement of agreements are second nature to her. 

Mary Ann is a long-time community supporter, having served on the City of Gresham's Historic Preservation Committee and as president of the Gresham Historical Society.  She is a dedicated sports fan, having grandchildren on award-winning teams in volleyball, football and baseball, and a marathon-runner daughter competing the Boston Marathon.

Kerry Ann O'Halloran, BrokerKERRY ANN O'HALLORAN, BROKER

Kerry Ann O'Halloran is best described as Multi-Faceted in the wealth of knowledge and services she offers to her clients.  Specializing in management of investor properties, residential and commercial, and homeowner associations, she brings a personal level of service.  From the complexity of leases, to HOA CC&R's, building maintenance issues, and the myriad of relationships involved, she brings experienced leadership to the KMO management team.

Kerry Ann's career in real estate began in 1991 leading to the beginning of Kohler Meyers O'Halloran, Inc. in 1992.   With the years she has a comprehensive understanding of all aspects of real estate and is a key member of the KMO management team.  Of particular note is her understanding of townhome and condominium association documents and the knowledge she brings to the association boards on the elements key to a well-run organization.

A graduate of Sam Barlow High and Western Oregon State College, Kerry Ann is a long-time area resident, serving on the Gresham Historical Society and the Historic Downtown Gresham Business Association Boards.  Always active, she hikes, plays soccer and follows sports of all kinds, adding in music and the arts in her spare time.

(503) 661-8000 ext 101 Direct


As a Certified Commercial Institute Member (CCIM), Martin’s focus is on office, retail and industrial leasing and sales.  Although his primary territory is the East Multnomah County communities plus Sandy and Damascus in Clackamas County, Martin works for KMO commercial clients throughout the Portland metropolitan area and out to the Coast in their search for the right opportunity.  With his many contacts and resources through the Commercial Assn of Realtors and the CCIM Chapters, Martin has his finger-tip on what’s happening in the marketplace, from financing, to sales and leasing activity.  For KMO clients desiring demographics and data on area market share, income, education, or an in-depth analysis of an investment, he has the tools and knowledge to give accurate and informative reports.  

As a member of a well-respected Gresham merchant family, Martin attended Gresham High and holds a Bachelor of Science degree from Lewis & Clark College.  Martin gives of his time to the community at the Gresham Historical Society, for many years as a member of the Downtown Design Review Advisory committee, and leadership in the Gresham Downtown Development Association, and Gresham Boosters.  Summer vegetable gardening and art are side interests, both of which he does exceptionally well.  We are the beneficiaries of his many design skills in preliminary space design for our lease spaces, as well as our marketing materials.

503-704-6812 Cell

Colleen Hildebrand, BrokerCOLLEEN HILDEBRAND, BROKER

Colleen Hildebrand has many years of experience in customer service, having worked in the dental field for many years. She followed this as a Community Coordinator with a focus on the Medicaid population before becoming a Real Estate agent.

"I became a Real Estate Broker to help people find what they need, to live, work, and function in their daily lives. If I can help put any of those needs at ease, I feel good."

Colleen has spent many years volunteering with different organizations such as Mission of Mercy, Snow Cap, St. Francis Soup Kitchen, Community Event Planning. A particular joy is involvement with youth in the area schools, and also as a Gresham youth soccer coach. Colleen enjoys the outdoors, hiking, biking, and general fun with her family and friends! Colleen is always smiling and ready to help you with your Real Estate needs in Commercial Sales & Leasing, Residential Sales, Consulting, Property Management, and Project Development.

971-288-9963 Cell


Exceptional marketing and sales skills put Darren at the top-producer, member of the Million (+) Dollar Club level.  As a member of the Council of Residential Specialists, (CRS), he brings the highest level of professional knowledge and skills to KMO residential real estate.  Experienced in both new construction and existing homes and townhomes, Darren offers his clients personal attention, great communication, and real attention to the details.  He helps buyers and sellers understand the real estate “playing field”, the bumps that come along, and finds the resolutions for a successful purchase and sale.  As a CRS, he has resources all over the US for referrals, in-coming to Oregon and outgoing.

A Sam Barlow High and Western Oregon State College grad, Darren maintains long-term relationship with friends and clients, making repeat sales and referral a mainstay of his real estate success.  Married to Corrine and now the father of a charming going on two-year old, Lauren, he is committed to his Gresham community and neighborhood.

503-489-1156 Direct 503-703-8168 Cell


Corinne O'Halloran, the "queen" of referrals, her clients love to pass her on to their friends and family.  Simply the best is what we hear at KMO, especially from first-time homebuyers.  A calm demeanor and engaging smile, coupled with a deep knowledge and understanding of real estate, provides a comfortable client experience.

Corinne believes, "Under Promise and Over Deliver" epitomizes what she practices, always giving the straight scoop, never promising what one cannot control, delivering the ultimate in service, always with a warm smile.

Married to Darren, with children Lauren and Logan, they are the "do-all" residential experts of the KMO team.  Multi-faceted in her real estate knowledge, Corrine provides service as well for several clients needs in managing their commercial properties.   As a Graduate of the Realtor Institute, an Oregon State University grad, and 18  years in the real estate business, she knows real estate and has the contacts for successful real estate results.

503-819-2337 Cell

Mishawn Nelson, BrokerMISHAWN NELSON, BROKER

Mishawn Nelson has a B.S. degree in Communications from Portland State University, working in sales her entire career. She began selling real estate in 2008 and took a brief break to work at her son's Montessori school as their Office Manager. Now that her youngest is in high school, she's decided to come back to what she loves… real estate. Mishawn is a life-long resident of Gresham with deep roots here as a Gresham High alumni and former Gresham small business owner.

She is a master at networking with people and takes great pleasure in helping buyers and sellers with their real estate needs. She is patient and compassionate and will always give you a straight answer. She considers it a privilege to work with Kohler Meyers O'Halloran, Inc. and looks forward to being of real estate service for her community.

503-730-7273 Cell