One of the guys in a dimsum crew is in a wheelchair so I am quite familiar with this subject.
Hei La Moon - downstairs has no elevator so must be seated upstairs which we prefer anyway. One step out front that he needs to be pulled over.
China Pearl - Elevator access is available but its on the street behind CP in the lobby by the bank.
Chau Chau City - Been a while for this one. They have an elevator going to the 2nd and 3rd floors. I think there might be a single step out front, cant recall.
Winsor - No access. We have gone there several times but its VERY difficult to get him up those stairs and once inside its tough to move around and no bathroom access at all.
Empire - Elevator access to the big theatre room upstairs.