Lease audits are a necessary part of lease administration. Just as running a corporate real estate portfolio is complicated for you, running a building is complicated for your landlord. Sometimes landlords make mistakes, and frequently, those mistakes are in his favor. Auditing is the best way to ensure that you're not only paying what you should relative to your lease, but that your expenses are in-line with the market and other properties you occupy. Here are five rules to follow to make lease administration and auditing easier for you: