After many years of writing, querying and submitting my writing (without success) I finally decided to look into an agency for representation. I received a favorable response from the agency, but they require all work to go through a third party critique, at a cost of $70-$90. They don't require a specific editor, so it doesn't seem to be a ploy to elicit money from me at all. Still, I wondered if this is standard practice with agencies?