No player may borrow from or lend money to another player.
This rule stands regardless of how much you have to pay or what the circumstances may be.
Should you owe the Bank, instead of another player, more than you can pay because of taxes or penalties even by selling off buildings and mortgaging property, you must turn over all assets to the Bank.
If you do not have enough, the opponent only gets what you can give them from the cards on the table in front of you and they are our the remaining amount.
On the other hand, if they have to pay you money as part of the Chance cards, then they have to take a shot.
Say you own a color set already — ideally something like the Oranges — and two of the Pink properties.
Find out now and have fun with Monopoly! We plan to develop Monopoly for years to come and take our users' feedback into account with every single update.