
Start by responding quickly and warmly so it doesn't feel adversarial. A short message works: "Hi [Name], thanks for the heads-up. I love living here and want to renew.
I did a quick check of similar [studio/1BR/2BR] places within about a half-mile, and the range I'm seeing is around $X–$Y for comparable size and condition. With the new rate, this unit would be at $Z, which feels a bit high against those. Since I've paid on time, kept the place in good shape, and plan to stay, would you be open to discussing a smaller increase?" Attach two or three very comparable listings with brief notes on square footage, parking, and condition; keep it factual, not accusatory.