Case Studies Naturally, we have numerous examples where RTG has recovered significant overcharges for tenants and assisted our clients. We have provided a representative example of five case studies that reflect some fairly typical scenarios to assist you in understanding the scope and potential returns when utilizing RTG’s lease audit process. We would be happy to provide additional specific examples, as well as confidential client references upon request. Case Study #1 Establishing a "fully valued" base year expense stop Case Study #2 Reducing CAM charges for a large retailer Case Study #3 Revising the gross-up methodology used by the landlord Case Study #4 Auditing a large headquarters location Case Study #5 Receiving a refund for a space shortage