No, Laz burns his brain cells with alcohol and nicotine.
As for Raven not having a contract, a verbal agreement could be made that he would stay with them. No one could see Raven leaving. No one. It was obvious that he would be there long term, and they wasted a great opportunity. Raven's never been the kind of worker to walk out while holding a title. Jarrett should have known this, and should have already re-negotiated a new deal with Raven.
There's a difference between being in the Main Event of the night and having a Main Event spot.