Getting a client's paperwork in and ready to work on
Where it usually goes wrong
Documents come in from every direction and somebody has to work out what each one is, whether you already have it, what year it belongs to, and what is still missing. Then they chase the client for the rest. If you have more than one office, odds are each one does it differently.
What I would ask on the phone
On the phone I ask where the job goes, what your software already does, and which odd cases somebody has to handle by hand. Most quotes I read include something you already pay for. I do not assume you need something built, and I have no reason to, because nobody pays me if you buy it.
What stays with your people
Your tax people decide what is complete, how anything is treated, what goes on the return, what the client is told, and what gets filed. A test is a test. It does not prove the thing works in a season, and it does not touch a client record unless you say so.