A Snarkling is covering all the bases to ask:
How far do rejection letters stretch? If my novel is rejected by an agent, is it kosher for me to query another agent within the same agency, or is the whole agency in effect giving me a thumbs-down?
This is a good question. I don't know the answer. Miss Snark flies solo on her broom. Most of my close collegial friends do as well. I'm going to take a flying guess that it depends on the agency (safe guess) and tell you it probably won't hurt to query another agent there. What's the worst that will happen? They say no again..well, you aren't any farther back than when you started. They cant blacklist you, or report you to the Bad Queriers Office of the Client Deportment Brigade so, what the heck...go for it.
If any of you reading have other info to provide, please step up to the mic.