Every year, the same pattern shows up: the tenant usually is not fighting the total CAM bill first. They are fighting the line items that feel vague, inconsistent, or easy to frame as "landlord overhead." The biggest pushback I see is on admin fees, repairs that look too close to capital work, management fees that were never explained clearly up front, and anything bundled into "common area maintenance" without backup. If landscaping, janitorial, parking lot repairs, and security are broken out cleanly, most reasonable tenants will at least engage on the numbers. If the statement looks like a lump-sum mystery invoice, you're already in a bad spot. What changed things for me was building the reconciliation package as if I was going to defend it in a dispute before I ever sent it. I keep the lease language right next to the expense category, flag exclusions before the tenant has to, and note anything unusual that hit the property that year. If there was a one-time roof patch, a big irrigation repair, or a temporary spike in utilities, I explain it in plain English instead of making the tenant guess. The other lesson: if a lease has caps, gross-ups, base year stops, or carve-outs, the argument usually starts because somebody used the wrong interpretation six months earlier and nobody caught it. By the time the annual true-up goes out, now it's emotional. I have found tenants are much less combative when the package is transparent enough that they can follow the math without a phone call. Curious how other CRE owners/operators handle this. What charge gets the most scrutiny in your reconciliations?