Let me just remind myself how this property game works.
You go round building houses and making money. Meanwhile you observe that another participant has the best bit of property there is, called Mayfarebadlyoutofthis. And they've built a hotel stand on it.
However, they've ran up big debts and need cash, so you see the opportunity to get your hands on this site at a good price, helped by some funds from the Community Chest and perhaps a fair bit of Chance. Once that deal goes through, you can build more stands and can then charge a high rent to your tenants.
The thing is with this game, when people are not watching the board, there's always the risk that the other players can use sleight of hand to increase their assets.