Once a game begins you can get this one of 3 ways:
1. Rolling the dice and landing on a property not owned by anyone else. When prompted you can purchase that property for the amount disclosed on the property card.
2. Winning an auctioned property. This can either be an auction you started or another player initiated. You just need to outbid everyone else in the game. If its a game you set up then you can make a bid and have everyone else withdraw.
3. Through trading. This can be accessed at the end of your turn but before you press
to end your turn press
. While the trade window is open make sure you are receiving a property and giving at least 1? (but upsidedown) or the trade won't work.