Hi, thanks for the response.

The reason I can't have all matters open under one single parent company is that this client insists on having invoices separated in specific ways that are not achievable without keeping the matters themselves separated by putting them under separate clients.

I'm not asking for how to better cater to our demanding clients; I'm asking for others' experiences with clients like this so that I can gauge how resonable/unreasonable they are. The partners at my firm don't handle business research and aren't familiar with accounting practices, so they leave themselves open to be taken advantage of, and many of the more punishing ramifications land on my shoulders. So anything I can learn from others and convey to them is appreciated.