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Firm President

Tammera R. Diehm

If I can make something easier for you, I’ve done my job.

My Approach

The best part of my role is that I have the opportunity to work with business owners, CEOs, CFOs and others, and, in doing so, I make things just a little easier for them. Sometimes this means I am discussing strategic business issues while other times I am helping because they are inundated with a huge volume of work and need someone to shoulder the weight, or they are looking for a business partner and need a recommendation. Regardless of the need, I focus on taking on the psychological burden and giving my clients the ability to focus on their business.

My work includes all aspects of real estate transactions, including buying, selling, leasing, developing and financing. My day-to-day world focuses heavily on mergers and acquisitions – if it involves real property, it involves me. I have a particular interest in multi-unit real estate, especially in the downstream energy, convenience store, and franchise quick-serve restaurant industries. In my practice, the law serves as a tool to help navigate all the complicated aspects of doing business when you own or occupy real estate – complicated zoning, land use, government approvals or regulatory compliance – I sift through these issues and find practical solutions for my clients.

My work also includes governance and compliance. Whether I am representing a charitable organization or a trade association, I provide guidance on how to comply with corporate, tax and campaign finance regulations.

Practice Areas

Honors & Awards

Notable Women in Law

Twin Cites Business Magazine, 2020

Recommended in Real Estate

Chambers USA: America’s Leading Lawyers For Business, 2020

MSBA North Star Lawyer

Pro Bono Service, 2012-2019

Top Women in Finance

Finance & Commerce, 2014

The Best Lawyers in America©

Minneapolis Lawyer of the Year: Municipal Law, 2017, 2019
Municipal Law, 2010-2021
Land Use and Zoning Law, 2013-2021
Real Estate Law, 2018-2021
Eminent Domain and Condemnation Law, 2021

40 Under Forty Honoree

Minneapolis/St. Paul Business Journal, 2010

Rising Stars

Minnesota Super Lawyers®, 2007-2012

Minnesota Super Lawyers®

Top 50 Women, 2018

Up & Coming Attorney

Minnesota Lawyer, 2006

Associations & Memberships

American Bar Association

Minnesota State Bar Association


Anoka County Bar Association

Minnesota Commercial Real Estate Women



(Commercial Real Estate Development Association)

Minnesota Petroleum Marketers Association

National Association of Convenience Stores

Minnesota Service Station & Convenience Store Association

Society of Independent Gasoline Marketers of America


Board of Directors, 2016-present


Board of Directors, 2011-present
President, 2013-2015

City of Columbia Heights

City Council, 2003-2014
City Council President, 2007-2014
Planning and Zoning Commission, 2000-2002
Charter Commission, 1998-2002
Charter Commission President, 2000-2002
Economic Development Authority, 2003-2014
Housing and Redevelopment Authority, 2003-2016
Housing and Redevelopment Authority Chair, 2006-2016

Metropolitan Council Land Use Advisory Committee

Member, 2007-2014

Nicollet-Central Policy Advisory Committee

Member, 2012-2013

Hennepin County Bar Association

Chair, Eminent Domain Section Committee, 2017-2018
Vice Chair, Eminent Domain Section Committee, 2016-2017