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Experienced Commercial Real Estate Leadership

Our success is a direct result of the dedicated efforts of Irgens’ talented pool of commercial real estate leadership who embody the firm’s core values. Each team member offers significant real estate expertise and all work together efficiently and effectively to maximize project value.

Irgens’ principal Members chart the course for the company and offer hands-on, high-level project involvement and oversight. The Members are supported by the firm’s strong leadership team which is comprised of business segment experts and office team managers, as well as the entire enterprise of real estate service professionals.

Irgens participates in industry advocacy and educational activities through a variety of industry-leading trade associations such as NAIOP, IREM, BOMA, ULI, USGBC, ACHE and HFMA. Many individuals on staff have earned professional credentials including CCIM, CPM, CPA, RPA, PE, AICP; and all participate in ongoing process improvement sessions aimed at honing skills, sharing knowledge and elevating Irgens’ best practices approach.

To provide feedback or make staff inquiries, contact us.

“Our customer is our priority. Whether it is an investor, tenant or service recipient, doing and advising what is right for them is what Irgens is all about. For over thirty years, this has been the philosophy that has driven our team in the delivery of full-service real estate solutions to customers nationwide.”

Mark F. Irgens, CRE


Mark Irgens is CEO/Manager of Irgens Partners, LLC (“Irgens”). Irgens is a developer, investor and operator of commercial office, mixed used, healthcare and manufacturing properties. Mark leads the Irgens organization in four distinct markets: Milwaukee, Chicago, Phoenix and medical office-healthcare development. He brings his 30 years of experience to clients and team members to ensure successful conception, implementation, completion and operation of projects. Mark has been directly responsible for over 200 real estate projects. He is a member of the Counselors of Real Estate and has earned recognition in the Midwest Real Estate News magazine Hall of Fame, Real Estate Forum magazine as a Midwest Real Estate Icon and the Wisconsin Builder Developer of the Year Award. He is a co-founder and past president of NAIOP-Wisconsin and a member of Commercial Association of Realtors Wisconsin and Urban Land Institute. Mark is currently a board member of the James A. Graaskamp Center for Real Estate at the University of Wisconsin-Madison, United Way of Greater Milwaukee and the Froedtert Hospital Foundation. Formerly, he served on the board of Waukesha Family YMCA, NAIOP-Wisconsin, BOMA-Milwaukee, NAIOP-National, Legacy Redevelopment Corporation, Waukesha County Economic Development Corporation and the Walter Schroeder Aquatic Center.

“We’ve worked hard to assemble a highly-qualified team of real estate service providers that we believe is the best in the business. Clients are our priority and our team delivers the skill, experience and know-how needed to help our clients achieve meaningful and measurable results.”

Jaclynn C. Walsh


Jackie aligns our organization with your needs. She digs deep to understand your specific and unique challenges and to identify exactly what needs to be accomplished. She assembles resources best suited for each client’s success carefully balancing expertise, experience, leadership and risk. Jackie continually monitors these resources and their performance with a commitment to education and process improvement, while ensuring compliance with our proven procedures and quality in delivery. Jackie’s focus benefits our clients and ensures Irgens helps them to realize their strategic objectives.

“As a long-time building owner, Irgens understands the inherent risks in owning real estate. To mitigate these risks for our investors, our clients and ourselves, we carefully evaluate each asset and develop portfolio management and optimization strategies. In doing so, we draw on the talents of our team, the strength of our partners and carry out a best practices approach aimed at achieving all financial and risk objectives.”

Duane H. Nolde, CPA

Executive Vice President, Real Estate Finance

Duane Nolde manages risk. He has an established network and deep pool of resources to address any real estate financing opportunity or legal issue. Whether monitoring company-owned investment assets, evaluating potential acquisition opportunities or advising clients, Duane is always on track, making sure processes and procedures are followed and internal controls are maintained.

“Our comprehensive, solutions-oriented approach is uniquely customized and focused on your project goals. We think like building owners because we are building owners. Let’s work together to find a pragmatic, affordable solution that reflects the market and puts you on a path for long-term success.”

David C. Arnold

Executive Vice President

Dave Arnold understands the big picture. He knows all about capital constraints, market share and growth strategies. He understands real estate and facility challenges and helps clients uncover possibilities to gain a competitive edge. Dave is a master relationship manager with an innate ability to keep a project team focused on the big picture as well as the bottom line. Clients know that with Dave they have a project leader who will guide them in the right direction, to achieve measurable outcomes.