There will be no disputes between lawyers in general, and two lawyers will cooperate with their homework, work together and defend each other.
You can cancel one or both of them now. It is necessary to apply for a contract to terminate the entrustment with a lawyer, but generally according to the lawyer's contract, if the contract is terminated because of the client, the lawyer's fee is not refundable.
The meeting will not be affected, and there is no limit to the number of meetings.