Mark F. Irgens, CRE


Mark is a developer, investor and operator of commercial office, mixed-use, healthcare and manufacturing properties. He leads the organization in four distinct markets: Milwaukee, Chicago, Phoenix and medical office-healthcare development. He brings over 40 years of experience to clients and team members to ensure successful conception, implementation, completion and operation of projects. He has been directly responsible for many real estate development projects. Mark is a member of the Counselors of Real Estate, the United Way Board of Directors and the Presidents Council of the Real Estate Roundtable 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 Chapter 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 UW-Madison, Three Harbors Council-BSA, Sculpture Milwaukee and the US Bank Advisory Board in Wisconsin as well as Irgens’ Board of Directors and Investment Committee.

“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.”

Jaclynn C. Walsh


Jackie joined the firm in 1991 and became a partner in 1998. She brings a diverse financial and strategic skill set to Irgens. Her tenure in the industry lends itself to achieving operational excellence at all levels of the organization. Jackie’s responsibilities include overseeing internal business planning and overall resource management. She directs the organization’s day-to-day activities by overseeing risk management and establishing, implementing and monitoring internal accountabilities. Jackie is a member of the Commercial Association of Realtors and earned recognition in the Midwest Real Estate News magazine Hall of Fame and the Milwaukee Business Journal Women of Influence. She currently serves on the boards of Milwaukee Regional Innovation Center, Inc., Waukesha Business Alliance and Irgens’ Board of Directors and Investment Committee.

“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.”

Duane H. Nolde, CPA

Executive Vice President, Real Estate Finance

Duane joined Irgens in 1995 and became a partner in 2007. He is responsible for the debt and equity financing strategies for Irgens’ investment portfolio with focus on maximizing returns while mitigating risks. In addition to overseeing investor and lender relations, his team brings financial expertise to project financing, cash management, tax planning, cost segregation studies, interest rate strategies and sale/hold optimization. He works closely with team members to develop and implement company policies and practices aimed at formalizing procedures and strengthening internal controls resulting in accurate and timely investment communications critical to risk management and decision making. Through his leadership and comprehensive understanding of the commercial real estate financial markets, Duane has greatly influenced Irgens’ return on investments. Duane is on Irgens’ Board of Directors and Investment Committee.

“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.”

David C. Arnold

Executive Vice President

Dave joined the firm in 2003 and became a Partner in 2007. He leads efforts to grow Irgens’ diverse portfolio of real estate. He guides clients in realizing relocation and growth strategies, ensuring efficient use of capital. He brings years of experience in healthcare real estate development across the country with a specialized expertise in working with hospitals, health systems and physician practice groups. Dave serves on the Advisory Board, University of Wisconsin Carbone Cancer Center and is a member of the American College of Healthcare Executives and Healthcare Financial Management Association. Further, he represents the firm’s three markets through active participation in Wisconsin, Illinois and Arizona Hospital Associations. He also is on Irgens’ Board of Directors and Investment Committee.

“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.”

Thomas R. Irgens

Executive Vice President

Tom oversees the asset management team and directs activities to drive market value for the company’s diverse portfolio of commercial, healthcare, mixed-use, retail and industrial real estate holdings nationwide. He is responsible for leading asset-specific business planning including marketing, leasing and property management activities combined to enhance each asset’s financial performance. Based on his experience and understanding of the real estate investment cycle, Tom has been instrumental in identifying opportunistic real estate acquisitions and dispositions relying on his in-depth understanding of market data and financial projections focused on maximizing value. Tom is an active member of the Commercial Association of Realtors Wisconsin and Milwaukee Downtown Business Improvement District #21 board member. He also is on Irgens’ Board of Directors and Investment Committee.

“Our disciplined investment philosophy, comprehensive research, rigorous risk management and diversified service offerings combine to create a solid foundation for our asset management program.”