I',m traveling for work at staying at a near by hotel. Can I get a monthly membership?

Get a guest pass and then see. Membership is good at all of them so look at locations available

Talk to a counselor and I am sure they can get you a two week free pass. Just ask for T.C. one of the trainers.

Yes

Yes, you can. It is the most expensive option though

No. But you can typically negotiate a reduced price for your stay (vs $15/day)