If Laval wins both their games in regulation, Utica would have to win all 3 of their games. Because 2 wins and an OT/SO loss gives Laval the advantage.
The first tie-breaker, like in the NHL, are the RWs. Laval currently sit at 29 and Belleville and Utica both sit at 27. In the scenario that Laval wins both games in regulation, they will finish with 78 pts and 31 RWs. Utica would have to win all 3 of their games in order to pass both Laval and Belleville. They would finish with 79 pts.
But if Utica win 2 and lose 1 in OT/SO, they will finish with 78 pts (3-way tie with Belleville and Utica). In such a case, Laval finishes ahead because they lead in RWs.