Usually the Theater has bags' keeping service. Suggest you ask Theater website for detail.

no

I don’t believe so, it might depend of the show/event.

No, they are not allowed!

Yes, she will be fine.

It was warm and humid the day we went including some rain. However inside it was fine no issues.

There is a comfortable, friendly, somewhat eclectic restaurant called Abby Lane right across the street from the theatre. Clearly belongs in the theatre district, We enjoyed it.

We always plan an hour-that way we are always on time-no matter the traffic, detours, or parking.

There are garages in the area. Google it and you can see their locations. None are much of a walk. For someone with mobility issues (like myself) try the Tufts Medical Center garage, now called the Tufts Shared Services garage as it is the closest - right next door. We arrived at the last minute. Looked for handicapped parking couldn't find it but found one near the elevator and was fine. Be sure to use the elevator toward the Tremont St side. On street parking would be near to impossible. Also consider the traffic for your arrival time. Its terrible. Took us over an hour once in the city !

Nick, I was there for a Hans Zimmer concert and I'm a bigger guy and was sitting on the floor just to the right of the stage. I'm 5'10" 260 with a 38 inch waist and the seats were incredibly small. The arm rests and cup holders were rubbing against my knees the entire time. There was another gentleman, larger than me, sitting a few seats down from me and I could tell her was having the same issues I was having. Great theatre! But for bigger guys, it's a little uncomfortable.