If you can't pay rent in Monopoly, there are a few potential consequences that could happen. First, the other player who owns the property you landed on has the option to collect any assets you have, such as houses or hotels and even properties via trade, in order to make up for the unpaid rent. If you don't have any assets to give, they can force you to mortgage your properties, sell all that you have and even force the sale or trade of your properties so you can pay the rent that you owe. Until your debt is paid play does not continue. If you don't have anything of value left or no one is willing to trade with you so you can pay off your debt then you will be declared bankrupt. All of your money/property will go to the person to who you owe the debt and you will be out of the game.