Especially if you aren't members?
Yup, my fiance and I are. I was baptized episcopalian but we do not belong to the church we are getting married at.
I am as well, it actually kind of hard to find a priest who was willing to do it, we're getting married outside. But depending on which dioscese you're in they have different levels of strictness.
I would just call the dioscese that you'll be married in. Normally you can talk to the Bishop's secretary, they don't call them administrative assistants yet!