SPARTA ILLINOIS CONSTRUCTION EXPERT WITNESS
DIRECTORY AND CAPABILITIES

Seventh Circuit Finds “Additional Insured” Requirements Met Where Non-Party Subcontractor Was Proximate Cause of Underlying Injuries

February 23, 2026 — Jason Taylor - Traub Lieberman Insurance Law Blog
In Atlanta Gas Light Company et al v. Navigators Ins. Co., Nos. 24-2888 & 24-2889 (7th Cir. Jan. 22, 2026), the Seventh Circuit Court of Appeals assessed whether an upstream contractor was an “additional insured” under an umbrella policy issued to its subcontractor. Atlanta Gas and Southern Company Gas (“AGL”) hired United States Infrastructure Corporation (“USIC”) to locate and mark gas lines that AGL owned throughout Georgia. In 2018, USIC failed to mark a gas line in Homerville, Georgia, and a boring company struck it, leading to an explosion that severely injured three women. The victims settled their claims with USIC but did not come to terms with AGL. AGL eventually did settle with the victims, but only after they sued AGL in Georgia state court (the “Underlying Suits”). AGL’s service agreement with USIC required USIC to obtain primary and excess liability insurance coverage that included AGL as an additional insured. Because USIC’s settlement with the victims exhausted its primary policy, AGL tendered the defense and indemnification of the Underlying Suits to USIC’s excess insurer, Navigators. Navigators denied the request on the ground that AGL was not an “additional insured” under the policy. Read the full story...
Reprinted courtesy of Jason Taylor, Traub Lieberman
Mr. Taylor may be contacted at jtaylor@tlsslaw.com

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Parking Garage Partially Collapses in Dearborn, Mich., Trapping One

March 31, 2026 — Annemarie Mannion - Engineering News-Record
A multi-level parking garage that partially collapsed in Dearborn, Mich., is fenced off and the city has started the legal process allowed under state law to demolish the privately-owned structure due to alleged dangerous conditions. Read the full story...
Reprinted courtesy of Annemarie Mannion, Engineering News-Record
Ms. Mannion may be contacted at manniona@enr.com

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Structuring Water Resilience for Data Center Development: Water Rights, Reuse Incentives, and Emerging Disclosure Risk

March 10, 2026 — Ashleigh Myers, Jillian Marullo & Jason Drogin Atwood - Gravel2Gavel Construction & Real Estate Law Blog
As AI-driven data center development accelerates, developers, communities and regulators are increasingly focused on water demand—both the volume required and the sources from which that water will be drawn. While industry attention has largely centered on electricity procurement and grid impacts, the availability and legal entitlement to a firm water supply has become equally material to siting, permitting and community acceptance. Particularly as surface and groundwater supplies become increasingly constrained and new projects are sited in regions experiencing tighter hydrologic conditions or growth-related supply constraints, project teams are increasingly integrating water supply analysis into early-stage development to address issues that can materially affect schedule, financing and long-term operations. Reprinted courtesy of Ashleigh Myers, Pillsbury, Jillian Marullo, Pillsbury and Jason Drogin Atwood, Pillsbury Ms. Myers may be contacted at ashleigh.myers@pillsburylaw.com Ms. Marullo may be contacted at jillian.marullo@pillsburylaw.com Mr. Atwood may be contacted at jason.atwood@pillsburylaw.com Read the full story...

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The Who/What/How of Sealing Plans for Architects and Engineers (Law Note)

March 03, 2026 — Melissa Dewey Brumback - Construction Law in North Carolina
The proper use of professional seals in North Carolina is critical. Failure to follow the prescribed requirements can subject you or your Firm to a Board sanction. Did you know that the NC Board of Architecture and the NC Engineering Board have jointly prepared a fairly straightforward document that can tell you exactly what you need to know about sealing of plans? That document, the “Seal Brochure” (pdf) is available for download. Every state’s regulations are a little different (thank you Federalism!) so it is worth reviewing with your staff at regular intervals, especially if you do work across state lines. Read the full story...
Reprinted courtesy of Melissa Dewey Brumback, Ragsdale Liggett PLLC
Ms. Brumback may be contacted at mbrumback@rl-law.com

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Substantial Evidence of Flood Loss is Not a Substitute for Required Proof of Loss

April 20, 2026 — Tred R. Eyerly - Insurance Law Hawaii
The court found that the insurer properly denied the insured’s claim for loss due to flood because a proof of loss was never submitted. Bay Haven at Coco Bay Condominium Association, Inc. v. Hartford Ins. Co. of the Midwest, 2026 U.S. Dist. LEXIS 6847 (M.D. Fla. Jan. 14, 2026). Bay Haven managed several condo buildings. When Hurricane Ian hit, it caused significant flood damage to these properties. Bay Haven held federal flood insurance policies through Hartford under “Write-Your-Own” policies. This meant Hartford was essentially a fiscal agent that managed policies and handled claims but paid them using federal funds. Following the storm, FEMA extended the usual 60-day deadline for filing a proof of loss to one year, or until September 28, 2023. Bay Haven did not submit its proofs of loss until November 2023. FEMA granted an extension but only for the specific amounts in the November requests. Hartford did not waive the 60-day proof of loss requirement for any other proof of loss. Hartford paid the amounts reflected in the November submissions. Read the full story...
Reprinted courtesy of Tred R. Eyerly, Damon Key Leong Kupchak Hastert
Mr. Eyerly may be contacted at te@hawaiilawyer.com

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From Dark Data to Building Intelligence

July 13, 2026 — Aarni Heiskanen - AEC Business
In this episode, I talk with Mark Sorsa-Leslie, founder and CEO of Auttaa AI, whose team just won first place in Luotea’s inaugural hackathon in Helsinki for turning property maintenance from reactive firefighting into proactive forecasting with AI. Mark is a chartered surveyor with 30 years of real estate data experience, previously the founder of the UK sensor company Beringar. We discuss why so much building data stays dark and siloed, from outdated networking technology to the shortage of people who understand both engineering and property. Mark explains how Auttaa bridges real-time building data with large language models, using what he calls an “influence graph” to surface correlations and causation across previously disconnected systems, such as linking occupancy patterns to CO2 readings to diagnose ventilation problems in minutes rather than days. Read the full story...
Reprinted courtesy of Aarni Heiskanen, AEC Business
Mr. Heiskanen may be contacted at aec-business@aepartners.fi

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Seattle’s Residential Zoning Transformation: What Property Owners, Buyers, and Investors Should Understand

May 14, 2026 — Lawrence S. Glosser - Ahlers Cressman & Sleight PLLC
Seattle is in the midst of a significant transformation in residential land use policy. Longstanding neighborhood zoning patterns that historically favored detached single-family development are being reexamined in response to housing supply pressures, affordability concerns, and evolving state mandates. For homeowners, purchasers, investors, and builders, these changes may create substantial new opportunities. They also create a heightened need for careful legal and practical due diligence. While zoning reform can expand potential uses of property, it does not eliminate the many other constraints that may still govern what can actually be built. Read the full story...
Reprinted courtesy of Lawrence S. Glosser, Ahlers Cressman & Sleight PLLC
Mr. Glosser may be contacted at larry.glosser@acslawyers.com

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Only A Contractor Can Appeal a Contracting Officer’s Final Decision

April 20, 2026 — David Adelstein - Florida Construction Legal Updates
A recent decision from the Civilian Board of Contract Appeals confirms that “only a ‘contractor’ may file an appeal of a contracting officer’s final decision.” Wattiker v. General Services Administration, 2026 WL 846001 (CBCA 2026) (citation omitted). The term “contractor is not an ambiguous term. A ‘contractor’ refers to a party to a federal government contract. Wattiker (citing the Contract Disputes Act). This is why the Contract Disputes Act does not apply to parties that are NOT in contract with the federal government. Id. In Wattiker, an appellant (appealing party) challenged the dismissal of a co-appellant. The co-appellant was dismissed because he was not a contractor, i.e., a party in contract with the federal government. In other words, the co-appellant had no privity of contract with the federal government. Read the full story...
Reprinted courtesy of David Adelstein, Kirwin Norris
Mr. Adelstein may be contacted at dma@kirwinnorris.com

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