Document Summary

This package contains an A/E Modification Justification letter dated October 9, 2025, from the Illinois Secretary of State's Office of Physical Services, Planning and Development Division, and a corresponding invoice from Specialty Consulting, Inc. (SPC). The modification pertains to Project 23.07C – Chicago Porches and Ramps located in Chicago, Illinois. The parties involved are the State of Illinois Department of Physical Services and SPC, the architecture/engineering firm contracted to provide professional structural, architectural, and engineering services.

The invoice (No. S23-597.1.13, dated September 29, 2025) reflects a project closeout charge of $5,064.00 for services rendered during the billing period of September 1-28, 2025. The modification justification explains that an initial payment overage resulted from an invoice error by a previous employee, which caused SPC to receive payment for the entire project scope rather than a single invoice amount. SPC subsequently applied this overpayment as a credit ("working down") against ongoing project costs. The cost increase being justified stems from additional site visits SPC was required to perform to ensure the contractor (Terrazas) completed all obligated work and to facilitate proper project closeout. The invoice terms are NET 30 DAYS, and the modification was approved by the Secretary of State's Office on October 7, 2025.