About Us

Learn more about Capstone Companies and find out why we truly are Everything Real Estate

The Capstone Companies are a team of real estate and business services professionals with over 100 years of combined experience in many real estate-related fields including commercial finance, law, development, mergers and acquisitions, property management, and appraisal.

Capstone not only provides traditional real estate sales and leasing services for commercial and residential properties but also provides appraisal and consulting services to those with an interest in commercial real estate acquisition, development and investment.

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Capstone’s Capital Partners division provides everything you need to represent your business interests, whether you are preparing to buy or sell a business or seeking financing for operating capital, growth, or equity partnerships.  Our specialists provide a full complement of services from representation in a sale or acquisition, assistance locating financing sources, transition coordination, consulting on business issues, and exit and succession planning.   

Our property management team has property managers with decades of experience managing commercial, residential, vacation, and condominium association properties. Our managers and maintenance team will make it easy for you to own investment property.   

The Capstone team possesses the expertise necessary to address nearly any real estate-related question, whether it be negotiating purchase agreement terms, financing options, property valuation, or matters related to development layout and design.  The Capstone team works together to provide its clients with the best possible service.

Please contact us if you desire integrity and professionalism from a locally-owned and operated real estate and business brokerage firm.                                                                                                  Capstone Companies – Everything Real Estate.

MEET OUR PRINCIPALS

JOHN GROOTHUIS – Co-Owner and Sales Associate

John Groothuis is a graduate of Grand Valley State University. Prior to joining Capstone in 2009, Groothuis had been involved in the banking business since 1988. Groothuis was the CEO and President of what was then Grand Haven Bank and was more recently the Community Bank President of Macatawa Bank in Grand Haven.

Groothuis has served on the boards of directors for several local organizations, including over 10 years of service on the Tri-Cities YMCA board of directors, having served as both Treasurer and President. Groothuis has also been involved in the United Way, Downtown Grand Haven, Inc., the American Heart Association, Kids Hope USA, and First Priority.

During his twenty-plus year career, Groothuis has assisted countless banking customers assess commercial real estate investments, and brings a wealth of real estate and financial experience and contacts to the Capstone team.

DAVID TEN CATE – Co-Owner, Founder and Associate Broker

David Ten Cate is a graduate of Calvin College and the University of Minnesota Law School and has been a practicing attorney since 1991. Ten Cate’s legal career focused primarily on real estate, small business, and transactional matters. Ten Cate obtained his Michigan real estate broker’s license in 2002 while working for a commercial real estate brokerage and development client. In that capacity, Ten Cate oversaw all real estate transactions for that client, and reviewed listing and marketing materials, purchase agreements, due-diligence reports, and closing documents. In April of 2004, Ten Cate founded Capstone Real Estate, LLC.

Ten Cate is a member of the Grand Rapids-based Commercial Alliance of Realtors, the West Michigan Lakeshore Association of Realtors, the Michigan Association of Realtors, and the National Association of Realtors.

He has served on the Board of Directors for a number of organizations, including the Grand Haven/Spring Lake/Ferrysburg Chamber of Commerce, the Grand Haven Main Street Downtown Development Authority, the Ottawa County Bar Association, Love in Action of the Tri-Cities (formerly Love INC of the Tri-Cities), and the West Michigan Lakeshore Association of Realtors.

Ten Cate holds the coveted Certified Commercial Investment Member (CCIM) designation, which is the most widely-recognized commercial and investment real estate designation in the country. Ten Cate is one of fewer than 200 Michigan brokers who have obtained the CCIM designation.

MEET OUR TEAM

Stan Boelkins

Associate Broker

Stan Boelkins is a graduate of Calvin College.  He began his appraisal career in 1965 and obtained his real estate broker’s license in 1970.  Boelkins has served on the Grand Haven Township Board of Trustees, the council of Second Christian Reformed Church, and is a past president of what is now the Great Lakes Chapter of the Appraisal Institute.  Boelkins has appraised numerous commercial properties during the course of his career, and brings a wealth of real estate valuation experience to the Capstone team.

Jamie Osterhart

Licensed Associate

Jamie Osterhart has a passion for encouraging, supporting and connecting people. With a degree from Michigan State University and a background in marketing, web design and interior design, Jamie is committed to providing excellent customer service and communication for all her Real Estate clients. She brings a variety of community contacts and focuses on creating lasting relationships to help clients meet their buying and selling goals. 

Jamie has coached youth sports, served on several community boards and is a member of Calvary Church. As a lifelong West Michigan resident, Jamie is a wife and mother of three and loves living near our incredible Lake Michigan.

Tom Nadeau

Certified General Appraiser & Real Estate Broker

Tom Nadeau is a graduate of Grand Valley State University and is licensed as a Certified General Appraiser and Real Estate Broker in the State of Michigan. He founded Nadeau Appraisal Service’s Grand Haven office in 1995, and established a diverse client base including several well-regarded lending institutions, law firms and real estate management companies. Nadeau has provided expert witness testimony and tax-assessment appeal representation at the local and state levels. He is a Candidate member of the Appraisal Institute and a member of the West Michigan Lakeshore Association of Realtors. The ethical and professional treatment of all parties to his services is the touchstone of Nadeau’s business philosophy. 

Beth Snoeyink

Marketing Coordinator

Beth is a graduate of Western Michigan University, with degrees in Math/Science Education and Creative Arts.  After decades of classroom management, she now brings her energy, attention to detail and creative flair to Capstone as the marketing coordinator.  By customizing contact management and advertising systems, Beth maximizes Capstone’s marketing of its clients’ properties and businesses, and facilitates the entire marketing process from listing through closing.

Nathan Patterson

Property Manager

A graduate of Middle Tennessee State University with a degree in Economics, Nathan brings a wide range of experience to the Capstone team; from turnaround management, litigation support and valuations in Chicago, to international logistics in Miami, to developing a small retail business into a world leader in online retail here in West Michigan.

Currently, he is the Executive Director at Mulligan’s Hollow in Grand Haven, a local non-profit community-focus ski hill, as well as serves on the Board of Directors at AWSI (Association of Wind and Water Sports Industries). Nathan is excited to bring his knowledge of business analytics and development, passion for customer service, energy and drive to the Capstone team.

LEIGH ANN HAWVER

Bookkeeper

Leigh Ann Hawver is a graduate of Ferris State University and a life-long resident of Grand Haven.  Prior to joining Capstone, she spent many years volunteering in elementary classrooms and for special events, serving as PTA Treasurer and working as a Special Education Para Pro for Grand Haven Public Schools.  Transitioning back into the office, she worked in manufacturing, non-profit and an accounting firm.

Through these varied life experiences Leigh Ann brings a wealth of knowledge of the lakeshore community and is excited to be a part of downtown Grand Haven. Her energy, organization and support make her an invaluable resource to the Capstone Team.

GET IN TOUCH

The Capstone Team is ready to assist you with your Commercial Real Estate needs. We look forward to working with you!

Contact Us Today!

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