You would first have to become a member, followed by a donator to get a /warp setup. Get however big you want the town to be protected. Build up your town, make it look nice and respectable, and set up lots. Lots are decently sized (from 8x8 to 50x50 in size) squares/rectangles that other members can purchase and then build upon. You can sell lots cheap for small ones, and expensive for large ones. Before you build your town, make sure you have a nice large decently flat area to make lots and buildings. After you have built your town and lots, try making a /warp, and maker a wall with signs that have the laws of the town on them. After all of that, you can sell lots and add baby protections under your protection. You could even consider making your own town monorail/shop/mine/treefarm/sugarcane farm/wheat farm/watermelon farm/pumpkin farm that make your town a good place to live in as they would receive those benefits.