If you want to use a pseudonym for your work, should you query with it or just use your real name to query and ask about the pseudonym later?
I signed my query letters in this fashion:
"Sincerely, Susie Smith (writing under the pen name Suzanne Spectacular)"
It was never any kind of problem; when it came to signing contracts and publishers' info sheets there was always a space for "Legal Name" and "Pseudonym."