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Sullan², Sandgrund, Perczak & Nuss P.C.

Denver Construction Defect Lawyers

The law firm of Sullan², Sandgrund, Perczak & Nuss P.C. is located in downtown Denver, Colorado. Our seven lawyers and support staff focus on construction law with an emphasis in construction and material defects and related insurance coverage issues.

Our firm has represented thousands of Colorado homeowners seeking damages for many homeowner problems such as townhouse, condominium and homeowners association claims, defective building materials, products and components, landslides, subsidence, slope instability, expansive soils and other geologic hazards, road collapse, insurance coverage disputes, improper road construction, and commercial building defects. We have sued every major builder in the state. Our firm works very hard to win for our clients the full cost of fixing serious defects in their homes – see some Significant Cases .

Construction litigation requires knowledge and experience in dealing with many trades, businesses, consultants, expert witnesses and professions, including architects, engineers, developers, builders, contractors, governmental agencies, insurance companies, bonding companies, and others. Our firm has extensive knowledge and experience dealing with all of these in both lawsuits and alternative dispute resolution settings.

Attorneys Scott Sullan and Ron Sandgrund are authors of Residential Construction Law in Colorado (Denver: 2008) and Residential Construction Defect Litigation (Seattle: 2000), the only books devoted to Colorado home and building defect law. Mr. Sullan and Mr. Sandgrund are also co-authors of Chapter 14 (Residential Construction) of the Practitioner's Guide to Colorado Construction Law (Robert Benson, Ed., 2007), in addition to many articles on construction law. Our firm’s books and articles have been referred to by the Colorado Supreme Court and Court of Appeals in construction law cases.

Sullan², Sandgrund, Perczak & Nuss P.C. has assumed a leading role to protect homeowners’ rights. Its attorneys frequently are asked to testify before the Colorado legislature regarding proposed laws affecting Colorado homeowners and homeowner associations. In 2007, the legislature passed the Homeowner Protection Act of 2007, a consumer protection law that the firm strongly supported.

Our firm handles and encourages all forms of alternative dispute resolution in the construction arena, including arbitration and mediation. The firm also has a well-established appeals practice in both the state and federal courts.


Effective January 1, 2012, the firm name was changed to Sullan², Sandgrund, Perczak & Nuss P.C. Previously, on October 1, 2007, Mr. Sandgrund became "Of Counsel" to the Firm.


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Making Headlines: Read news articles about Sullan², Sandgrund, Perczak & Nuss P.C.

Representative Construction Defect Cases


Serving homeowners and homeowner associations in Metro Denver and on the Front Range, in the High Country, and along the Western Slope of Colorado, including Denver, Colorado Springs, Boulder, Fort Collins, Littleton, Broomfield, Centennial, Grand Junction, Glenwood Springs, Brighton, Vail, and Aspen and in the following Colorado counties: Jefferson, Douglas, Arapahoe, Boulder, Weld, Adams, Grand, Mesa, Mineral, Eagle, Garfield, Animas, Summit, and El Paso.

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