Exclusivity agreement with realtor

[Natalia Orosco]

So I am a new investor and I met with a realtor who is a former investor himself. I left the meeting feeling good the only thing is he wants me to sign a exclusivity agreement. He said that it would be the seller that's pays him. But my question is is the contract still necessary. He said if things aren't working I can rip it up at any time. Should I be worried it is this typical. I live in CT