A conventional apartment building turns maybe half its units over a full year. Student Housing turns all of its units in three weeks. The work was always the hard part. One of the most frustrating parts was coordination. Keeping maintenance, the techs, the vendors, and the site managers looking at the same picture, updated by the hour, against one deadline. We looked at several turn-software vendors. Some came close. Few are built for one property emptying and refilling all at once, where a 4-bedroom unit holds four separate leases and two of them renewed. None of them did what my onsite team asked for. So I built our own. We started from the spreadsheets and whiteboards the team already kept. The tools are good enough now that the person who understands the problem can build the thing, and understanding the problem turns out to be the scarce part. Now the part that you need to consider before building in-house. You own it. The upkeep, the fixes, keeping it alive when it breaks at 11 pm the week before move-in. I took that bet because a turn board fails loud and local. If it dies, I know inside an hour, and the crew still has the spreadsheet they started with, but so does everyone else working at the site. The system was already there. It ran on whiteboards and somebody's memory. Now it runs on code.