Deal with the devil

ƒ??Look, I can make you richer, more famous, and more successful than any other real estate agent alive,ƒ? the Devil tells a real estate agent. In fact, I can turn you into the greatest agent in history.ƒ?

ƒ??Well, what do I have to do in return?ƒ? replies the real estate agent.

The Devil chuckles. ƒ??Of course, you must give me your soul,ƒ? he adds, ƒ??but you must also give me the souls of your children, your childrenƒ??s children, and, in fact, you must give me the souls of all your descendants throughout eternity.ƒ?

ƒ??Wait a minute,ƒ? the realtor cautions, ƒ??whatƒ??s the catch?ƒ?