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The Cornerstone Group – An award-winning real estate development team that creates unique and diverse multifamily housing and mixed-use developments.
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Recent News


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We build community through the power of

people. place. planet.

The Cornerstone Group is a mission driven, values led real estate company.

We utilize a triple bottom line approach to build strong communities.

We create and cultivate thriving places that contribute to the well being of people and our planet.

From affordable housing to quality for-sale dwellings, from challenging urban sites to mixed use commercial developments, we customize our real estate services to best meet the needs of each property and the community it serves. No matter the project, we bring our mission driven approach to everything we do. Our services include, but are never limited to:

Real Estate Development

Property Management

Urban Planning

Sales & Marketing Coordination

Property Repositioning & Workouts

Project Management

Asset Management

Investment Analysis & Consultation

Construction Administration & Monitoring

Our Team

Behind every development we create is a secret to success that goes beyond bricks and mortar. Beyond the walls of the physical structures impacting the environment, people and the communities that we serve in positive, meaningful ways.

Colleen Carey

Colleen is responsible for overseeing all corporate and financial operations including acquisitions, new development, redevelopment, asset management, property management, strategic planning and community relationship building.

Diane Devon
Portfolio Manager

Diane oversees the day-to-day operations of all of our residential properties throughout the Twin Cities Metro and outlying communities. She supervises and works closely with a staff team of about 35 to ensure the assets meet the owners’ philosophy, vision and goals over the life of the investment.

Elaine Swenson
Property Management President

Elaine oversees the portfolio of residential properties and acting as Property Manager for the retail properties. Elaine is responsible for supervising capital expenditures and seeking out creative ways to manage, market and position properties, new business, refinancing and acquisition of new apartment communities.







Lawrence Black
Project & Operations Manager

Lawrence supports The Cornerstone Group with the coordination of both Operations and Development Projects. Operations work ranges from general facilitation to the creation and management of operational systems. Project specific duties include: site supervision, project planning and timelines, community engagement, communications, budgets, contracts and project systems.

Mary Dempsey
Property Management Operations Manager

Mary's responsibilities include Human Resources, Logistics management, budget preparations, Operational strategy and standard procedures and policy administration

Stories From the Field

Contact Us

Whatever you need, we look forward to hearing from you.


2213 W 54th Street, Minneapolis, MN 55419