ACI's Forensic Consulting Group is a multi-disciplinary team focused exclusively on the provision of expert, ethical and effective support services for design professionals, owners, contractors and other members of the construction industry involved in the resolution of disputes arising from technical failures to contractual issues.

We maintain a highly credentialed and experienced staff of architects; civil, structural, mechanical and electrical engineers; and construction professionals with expertise in cost analysis, scheduling, jobsite safety and project management.


  • Building Condition Surveys
  • Due Diligence
  • Dispute Resolution Strategies
  • Exhibits and Presentations
  • Expert Testimony
  • Mediation and Arbitration


Henry R. Hermis, Jr., AIAis President of ACI and Principal-in-Charge of design and technical consulting services. He has over 35 years’ experience in architectural practice, including public, institutional, commercial and industrial projects of significant scope and complexity. He has over 25 years’ experience in research of building codes and technology.

Since 1992 when joining ACI, Mr. Hermis has been involved in numerous dispute cases of building defects whereby he has seen the effects of improper design and construction, the lack of coordination of trades and the lack of following manufacture and industry standards.  He uses this knowledge and experience to assist architects and building designers in providing comprehensive review of their building envelope.

Mr. Hermis has served on the American Institute of Architects' Code Review Committee for the City of Houston in writing the City of Houston Building Codes. He is certified by the International Conference of Building Officials as a Building Plans Examiner. Mr. Hermis provides building code consulting and third party building code reviews. He has provided state required Building Code Reviews of numerous facilities for independent school districts surrounding the Houston Area and building code analysis for other building owners.

He is certified as a registered accessibility specialist with the Texas Department of Licensing and Regulation for both plan reviews and site inspections.  He has 20 years’ experience in accessibility consulting. He has performed over 500 of these accessibility audits and has given seminars on accessibility compliance at the University of Houston as well as in some of the leading design firms in Houston.

Mr. Hermis' work with ACI includes both forensic investigations and a leadership role in the firm's project management of building design projects and building condition survey assignments.  Mr. Hermis has over 20 years of experience in the forensic field.

Dan E. Medley, AIA is a senior associate with ACI. He provides project management and review of contractual relations and forensic investigations . Mr. Medley has 25 years experience in the building industry and his work includes institutional, civic, historic and residential buildings, with particular emphasis on historic restoration. He has worked for over 15 years researching historic buildings accomplishing forensic analysis to provide viable future alternatives. He has provided forensic analysis on some of the oldest buildings in Texas including the Alamo and many notable projects, including the Texas State Capitol Restoration, the La Mansion Del Rio Hotel and the Guenther Museum. He is a graduate of the University of Houston and has passed the examination for Building Plan Examiner by SBCCI.

Linda Porras-Pirtle, AIA is a director with ACI.  She provides building and energy conservation code consulting as well as third-party plan reviews and inspections.  Mrs. Porras-Pirtle is certified by the International Code Council as a Building Plans Examiner and an Energy Conservation Code Inspector.  She is a member of the 2017 Building Enclosure Council and the Building Commissioning Association.  Mrs. Porras-Pirtle is a licensed Architect in the States of Texas.   She has over twenty years of experience in commercial architectural practice.  Mrs. Porras-Pirtle currently sits on The City of Houston Planning Commission and has for more than six years.  She is a graduate of the University of Houston – Magna Cum Laude.