Team

Dimitri Nassis

Director of Development

Tony Andrews

Director of Construction

Tandem began with a simple idea: build on trust, respect, and the belief that real estate works best when every discipline works as one. What started as a single project quickly grew into a portfolio that proved the value of combining development, construction, and property management under one roof. Over time, that approach became our platform — fully integrated, deeply collaborative, and grounded in accountability.


Today, a team of more than 20 brings the same hands-on mentality and entrepreneurial spirit that defined our early days, working together to create projects with integrity, character, and lasting value.

Jeffrey Hreben

Senior Development Manager

Paterson Cox

Senior Project Manager

Kevin Henning

Project Executive

Justin Kleifield

Development Manager

Chris Walsh

A.L.A, Principal Architect

Kimm Donnelly, CPM®

Director of Property Management

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