After signing, the file goes mostly quiet while the building rises, punctuated by deposit milestones tied to construction events. The developer issues progress updates; your obligations are simply to fund each stage on schedule and keep your closing plans current.
Activity resumes as the building approaches completion. You will receive notice of the closing window, schedule a walkthrough of your actual unit, and document any punch-list items for correction. If financing the balance, loan work starts well before this point, because the closing notice period is not generous.
Closing itself works like any condo purchase: final numbers, title, association setup, and keys. The buyers who have smooth deliveries are the ones who treated the quiet years as planning time, liquidity ready, financing arranged, walkthrough done seriously. Rangely stays on the file through delivery, including the walkthrough and punch list, for every preconstruction client.