Navigating the real estate market requires a thorough understanding of due diligence. Due diligence is a crucial process in any real estate transaction.This is called a "declaration of due diligence. " The server also fills out a proof of service form. On this page below is a list of LOCAL forms that can be completed online and then printed. The form you need may be in this list. The County of Santa Clara Sheriff's Office accepts payment via: Certified or Cashier's Check; Business Check; Money Order; Cash; Court Ordered Fee Waiver. Free Consultation - Call (408) 436-0789 - SAC Attorneys LLP is dedicated to providing our clients with legal services in Corporate and Business cases. Unfortunately due dilligence is forfeited if the deal doesn't go through.