I would not advise Accelerated, there are a number of other quality flight schools in AZ. They do offer twin training, but their practices are sketchy. They have 3 people in one plane logging flight time, which is in the grey area of legit. Also I think you walk away with only twin ratings, and in today's market you do need single ratings. I also know they don't put any time into ground training, as instructors are not paid for this.
Oh and yes, they lost a twin last June in Nogales, AZ after the DE advised them not to fly the plane. Many details which I wont go into.
Good luck.
Travis