Unmatched Forensics and Expert Opinions by the best in the Industry
We provide expert architectural, structural, roofing and exterior enclosure opinions to attorneys, offering clarity on issues ranging from building codes to construction defects. With experience in depositions and courtroom testimony—including numerous slip and fall cases—we understand the legal process and the standards of care applicable to all parties involved.
With over 100 years of combined experience in architecture, structures and exterior wall enclosures across multiple states, our firm has helped secure multi-million dollar awards by combining deep technical knowledge with strategic insight. We’ve earned over 40 design awards and are recognized for unmatched expertise in construction documentation and detailing—critical elements in building-related litigation.
Our firm is uniquely led by the only AIA Fellow honored specifically for excellence in technical detailing and construction documentation.
We begin every engagement by thoroughly understanding the legal issues at hand. Through in-depth research and analysis, we develop precise, defensible opinions. Our goal is to support your case with clarity, credibility, and the highest level of professional commitment—delivering the best possible results for your clients.
Forensic and Expert Witness Services
Our expert witness services combine deep forensic investigation with clear, fact-based reporting and testimony. We deliver thorough, well-documented reports, deposition testimony, and courtroom appearances designed to withstand legal scrutiny. With experience on both plaintiff and defense sides, we understand the nuances of legal strategy and tailor our forensic analysis to meet the specific needs of attorneys and their clients.
Beyond document review and opinion writing, we conduct on-site forensic testing, including slip resistance (coefficient of friction), door force measurements for ADA compliance, and illumination testing in foot-candles to evaluate code compliance. Our hands-on approach ensures that findings are based on real-world conditions, not assumptions.
When specialized expertise is required, we collaborate with a trusted network of consultants to ensure every technical aspect of a case is fully addressed. Just as importantly, we maintain our integrity — if an issue falls outside our expertise, we are upfront about it. Our priority is to provide clear, defensible forensic analysis and testimony that strengthens your case.
Code and Standards Research
Our firm offers unmatched expertise in building codes, life safety, and accessibility standards—both current and historical. We have a deep understanding of how national and local codes (IBC, ADA, NFPA, ANSI, etc.) apply to real-world conditions, and how past versions of these codes may impact older structures or incidents. This knowledge allows us to assess compliance and standard of care issues with clarity and authority.
In forming our expert opinions, we go beyond the codes themselves—consulting technical publications, code commentaries, and books written on relevant issues to build a well-rounded, research-backed foundation. Our ability to interpret and creatively apply these standards to your case ensures strong, defensible conclusions that align with both legal and architectural expectations.
Construction Drawing Review
Our firm has extensive experience reviewing architectural and construction documents for code compliance, constructability, coordination, and adherence to the professional standard of care. We evaluate the clarity and competence of detailing and understand the roles and responsibilities of architects and consultants during both design and construction administration phases. This includes a strong grasp of the duty of care expected within the profession.
For over 25 years, we’ve served as signatory on construction documents using our licenses across multiple states. Our background in a wide range of office environments gives us practical insight into real-world design processes and documentation standards. This experience allows us to identify issues, clarify responsibilities, and provide sound, defensible opinions that support your case.
On-Site Testing, Field Verification and Exhibits for Trial
Our firm provides on-site testing and field verification services to support expert analysis and litigation needs. We utilize specialized tools to conduct slip resistance testing (coefficient of friction), door force measurements for ADA compliance, and light level readings in foot-candles to verify code-required illumination. In addition, we take precise field measurements and can produce accurate, scaled drawings to document existing conditions or clarify issues under dispute.
Beyond investigation, we can develop and redesign solutions to bring buildings into compliance with applicable codes and standards. These can be used as part of legal strategy or settlement discussions. When needed, we also coordinate cost estimates to support the proposed changes. We deliver practical, technically sound solutions that strengthen your case and provide clear paths forward.
Results-driven architectural expert witness services
DSE Experts delivers unmatched technical expertise, innovation, and proven results. Discover how our commitment to excellence can contribute to your success.
"David Swartz's deep knowledge of codes and expertly written report was instrumental in securing a multi-million dollar award for our client. His expertise is unmatched."
San Francisco Attorney- Slip and Fall Stair Case.
Contact us
Location and Contact
Los Angeles CA 90025
Phone: 310-617-6788
Contact: David Louis Swartz FAIA IIDA
LEED AP NCARB
Email: dswartz@dse-experts.com