Answer:
a Conflict of Interest Issue
Step-by-step explanation:
In many countries, including the USA, the legal system is built on an adversarial process. Each of the conflicting parties is allowed the chance to argue their case as persuasively as possible. It means each side independent representation to defend their rights.
In the adversarial process, a lawyer must be loyal to their client to represent them effectively. It is practically impossible to be loyal to two clients on opposite sides of a court proceeding. Conflicts of interest will arise as the same lawyer cannot argue for and against the issue in the same court.