Contact us 1-847-573-1717



LM specializes in serving the physical due diligence needs of commercial real estate clients across North America. We strive to always deliver value to our clients in the form of comprehensive, detailed, and timely reporting. Rendering professional consulting services to the upper echelon of real estate lenders and investors—firms that “really want to know”—is what we do.


LM Consultants, Inc. was formed in Chicago in 1995 by Gregory E. Lehn and Thomas J. McNamara, two experienced professional engineers who have worked together performing property condition assessments and construction consulting services on hundreds of properties of all types and sizes throughout North America since 1984. In 1998, LM Consultants, Inc. acquired Daniel Karlin Associates, Inc., an architectural consulting firm founded in 1970 with roots as an architectural design firm dating back to 1931. To serve the needs of our ever increasing client base, we have added experienced architects, engineers, and construction managers to our staff and have opened new offices. Our staff members are the key to the success and continued growth of the firm. Quality and consistency result in repeat business from our clients.


LM Consultants, Inc.’s staff of architects and engineers has years of experience in both the condition assessment of existing properties and the construction of new properties. Our expertise and experience in evaluating existing properties are essential in reviewing plans for new construction projects— we know which materials and systems perform well and which do not. Our experience with new construction projects and knowledge of construction costs, construction techniques, materials, and systems are critical in making recommendations relative to repairs or revisions to existing properties.

  • Architects
  • Engineers
    • Civil Engineers
    • Structural Engineers
    • Mechanical / Electrical / Plumbing Engineers
    • Fire Protection / Life Safety Engineers
  • Construction Managers
  • Project Managers