There are a total of 37 Homestead missions in Assassin's Creed 3. The homestead has its own little story line and there will only be a few missions available at a time. Doing these missions makes the homestead bigger and settlers can craft special objects that can be traded to make money quickly. The more missions you do, the more recipes are unlocked and you can craft higher quality goods. This will also unlock additional mini-games and interactive conversations. As a nice little bonus you will receive Achille's original Assassin outfit after all homestead missions have been completed.