Notice of Invitation for Proposal: The State Auditor's Office (SAO) invites proposals for auditing. Proposer must fill in all information asked for in the blanks provided under each item.Sealed Request for Proposals (RFP) will be received at the County Purchasing Department,. 800 E. Overland, RM 300, El Paso, Texas 79901 before p.m. Contractor agrees to cooperate with the Auditor in the conduct of the audit or investigation including providing all records requested. Below are the documents for the City of Dayton's Request for Proposals ("RFP") for professional administrative services. The RFP process can be complicated to manage. Learn how to speed up your process with these steps and tips from proposal professionals.