Principal/Managing Partner

Brian is a founding member and Principal of Neumann Sloat Arnold Architects with over 25 years of experience in architectural design and construction. Brian has extensive experience consulting for owners, contractors, developers, and other architects. He has also led forensic investigations for construction litigation support on both plaintiff and defense sides. Brian grew up in Michigan's upper peninsula and has experience with cold climate design and construction. Brian has both architectural design and construction experience and is particularly adept at developing details which can be executed in the field.

Brian is responsible for administration of all aspects of a project from proposal preparation to final closeout. He is responsible for resource allocation, interfaces with clients and attorneys, planning and programming, and has oversight of the entire project team.


Austin is a founding member and Principal of Neumann Sloat Arnold Architects. Austin has a special interest in technology and in working on exterior building systems that incorporate high-performance elements. He has worked on several high-profile and award-winning projects, including two Architectural Record Houses. Austin has worked on over a hundred litigation cases in various capacities, both plaintiff and defense. He has delivered talks on waterproofing systems as well as on using data loggers to verify performance of as-built conditions. Austin has worked in construction and has an architectural design background.


Steve is a Partner at Neumann Sloat Arnold Architects. He has over thirty years of professional experience as an architect, building envelope consultant, construction company project manager, and owner-employed consulting project manager. His experience in design, project management, and construction covers all major building types including hospitals, data centers, R&D facilities, offices, historical renovation and high-end residential. He has also been involved in the investigation, remediation, and litigation of defective buildings.

Senior Project Manager

Amber has been involved in waterproofing and remedial design for over 15 years. She has experience as an expert witness, conducting forensic investigations, and in material selection. She often bridges the gap between general contractors and changes in industry technology. Amber's responsibilities include remedial waterproofing design, developing details, coordination of drawings and specifications, and contract administration services. She conducts investigations and surveys of failed building assemblies and existing structures.

Project Architect

Mark joined Neumann Sloat Arnold Architects after spending more than 8 years practicing forensic architecture at Walovich + Associates. Mark earned a Master of Architecture degree in 2002 from Lawrence Technological University in Southfield Michigan. In 2005, Mark earned a Class B California General Contractors License.

Senior Technical Manager

Lee has been involved in waterproofing from the construction side for 25 years. A licensed general and waterproofing contractor for decades, Lee also has years of experience in forensic investigation, material selection and specification, and as an expert witness. As Senior Technical Manager, Lee is a bridge between design and construction. He joined Neumann Sloat Arnold Architects in 2013.

Senior Project Manager

Project Manager

Stephany graduated from Cal Poly with a Bachelor of Architecture in 2014. She has previously held internship positions in Chicago, Copenhagen, and Shanghai. Her responsibilities at Neumann Sloat Arnold Architects include surveying and documenting existing conditions, drawing production, and quality control for all project drawings. She joined Neumann Sloat Arnold Architects in 2014 and is currently pursuing licensure.

Junior Designer/Technician

Eleni received her M.S. in Architecture degree from the University of Oregon in 2015. She previously studied architecture in Greece and Italy. Born and raised in the countryside, she enjoys spending time outdoors. She is interested in water and energy sustainability and has interned in Greece and Chicago. Eleni joined Neumann Sloat Arnold Architects in 2016.

Junior Designer/Technician

Ian graduated from the Rhode Island School of Design with a Bachelor of Architecture and Bachelor of Fine Arts in 2016. His thesis work explored storytelling as a temporal medium for experientially created, defined, and destroyed ephemeral architectures. In pursuit of sensitive and functional design sensibilities he is interested in the intersection between experientially and technically focused architecture. He joins NSA Architects with intern experience in residential architecture and interiors.

Karen Spicer

Office Manager

Karen is awesome!