That's a slick gun. I've handled the Beretta 90-two and reall like it.
After a quick search on Google... It looks like your choices will be between a custom leather job OR a generic style holster that is not molded to the gun and allows extra room for the laser.
IMHO...Your best (but probably more expensive) option would be to find a custom holster maker that can mold the holster around the gun and laser.
I make leather holsters and am currently working on one for a LEO friend that will hold his H&K w/ a rail mounted tactical light. However, this type of job usually requires having the specific gun / dummy gun and tac-light to shape the holster.
Since I don't have a Beretta 90-2 dummy gun or LaserMax to work with, I doubt I can be of much help. I would try contacting some of the various custom holstermakers online and see if any of them could make one for you. Worth a shot