Is it accepted practice for an attorney to send a bill without first telling you 1) that they are going to be billing you for talking to them, and 2) telling you their rates?

Basically - as POA for my elderly dad, I contacted the board of the coop building where he lives to get some basic info for estate planning. They asked me first to send my POA to the coop's attorney so she could review it, we had a few brief emails back and forth, and that was that. At no time did either the coop board or the attorney tell me I would be charged for anything or what the rate would be.

When I received the bill I was surprised, and when I questioned the attorney in question, she basically said, "What do you think happens when you talk to an attorney." Of course, that made me feel like a total rube.

Is this a common practice? I'm just curious.