Inserting a buying broker

[Jordan Ness]

If We called the listing agent off MLS, we are proceeding to an accepted offer and going under contract, and we don't think the selling broker seems like they are representing our interests correctly, can we insert a different buying broker before we sign the contract ? As of now, a single broker (the listing agent) is representing both sides . We are concerned without inserting another broker who will represent our interests that we will miss contingencies and stipulations. Thanks in advance