DPW associate here.
(1) what benefits do they give, specifically at home office stipend, is healthcare included, gym reimbursement, meals and taxis.
Same as any other big law firm, with just a haircut across the board probably. In the past few years, DPW has instituted some draconian policies (or at least began enforcing them) - and the trend seems to be continuing. For example, it used to be cars generally at night were fine, but now it's STRICTLY only past 8:30 PM regardless if there's a hurricane outside.
(2) how long do people share offices for? It seems like DPW is way behind other firms at giving people their own offices early. At what year do people get their own office?
I think someone said it earlier, but fifth year if you are lucky is correct. That being said, there's a strong favoritism aspect at DPW that I've noticed... if you're on their good list, anything goes.
(3) would you say the m&a group is as strong as Simpsons? If anyone is in m&a, how big is the group and what sorts of deals have you done? Public v private.
Probably the same - it depends on who you are. Some people get big public deals and some people get stuck doing small private deals or just ancillary agreements for deals forever basically. The type of work often depends on what chances you get early on in your career here.