How do i enter into a business partnership on fable 3 with another player

Fable III Achievement: Online Merger (10 points) - Enter into a business partnership with another Xbox LIVE player.

In an online co-op game, interact with your friend's character. You should find an option to enter into a business partnership ("LB"). Select this and agree to the terms and conditions to unlock the achievement.

Here's how it works:

• When you are a player, form a partnership, it only takes effect when you are playing together.
• While playing together, every purchase made (by either player) is split evenly. So if Player A buys a house worth 10,000 gold, both players pay 5,000 gold. If one player only has 1000 gold, they spend all of it, and the other player spends 9000. Same for items.
• Income from properties, jobs, chests are split 50/50.
• When dissolving a partnership (or marriage) all joint properties are sold and the proceeds are split 50/50. This happens whether or not you're in a game together.

Good news! It has been reported that you can download Fable 3 free from the official Xbox website. On the Xbox Marketplace, choosing to download the game using Microsoft points as a Gold member unlocks the title for free despite being listed for $19.99.