Routine and positive updates. Email does the job. Pair with a short same-day text: "Just sent the weekly update — let me know if you want to chat through any of it."
The seller needs to hear your voice — for reassurance, for a decision, or to land an emotional moment. Email first (creates the record), then call (delivers the warmth).
Every template above follows the same skeleton. The substance changes; the structure does not. Understanding the why behind each part is what lets you adapt confidently when a real listing throws something the templates do not anticipate.