No, Loria was the owner of the Expos. He bought them in either 1999 or 2000 (I'm not entirely sure) and promised that he'd build a new stadium, acquire talent, and pretty much be everything that the old owners weren't. I'll give him credit, he did at least attempt to get talent, but most of them didn't pan out (Hideki Irabu and Fernando Tatis being the 2 prominent and glaring ones). However, it became apparent that he wasn't committed to Montreal when he let the lease on the plot of land that the team was looking at building their new ballpark on expire.
Then, after the 2001 season, Bud Selig decided that he needed to contract 2 teams in order to fix all the problems that baseball had. He basically worked out a deal where Loria would become the new owner of the Marlins, while the Marlins owner would move into the Red Sox ownership picture. The Expos, meanwhile, would be bought by MLB and, without any owners in place, would be free to be blown off the face of the baseball universe.
So, basically, I despise the man and his new team because of the way he came into Montreal, promising to save baseball (which was very saveable at that point, but probably not so much now), and then skipping out of town the moment something nicer came up. It makes me sick to see the success that piece of shit is having with his new team.
And, normally, I'd probably be rooting for an underdog team like the Marlins, just like I was cheering for the Angels in last year's playoffs.