Leafs/Habs both bring in north of 200 million in profits per year. For a team like Toronto, I am not sure how much adding Bedard effects their bottom line because they already have their marketable stars like Matthews and Marner.
For Montreal, I feel like the sky is truly the limit. Bedard would be the first generational skater in Montreal in several decades, and surely their profits throughout his career would reflect that. I think the Habs would be willing to pay more than $100,000,000 to guarantee drafting Bedard; realistically the impact of more playoff games, more fan excitement around the team etc. would be MASSIVE for the organization. The only player with that pedigree in Montreal is Carey Price, and that era of the Canadiens seems to be coming to a close.
Rangers are the only other team that would really be able to compete financially I think, but they have a plethora of stars (Fox, Igor, Panarin) and similarly I don't believe spending a huge amount of money on Bedard would see the type of return that would make it worthwhile.