By the way, if client is choosing a name for the LLC, you can offer your IP insights on trademark law. There is a common misperception among business start-ups that when a name is available to register with the state as an entity, that that means it is also available to use as a trademark. Biiiiig mistake!
So often have seen people who never gave a thought to checking on trademark rights, thinking that if they got the business name cleared by their state they were safe to use it as a trademark. Here's where you can shine in helping them choose a name that can double as a strong mark and steer them away from bad choices. And there are many mistaken perceptions out there about what makes a good mark. You can offer a great service is helping them choose a good one from the beginning--you can counsel about the value of a trademark search to avoid problems down the road, what makes a strong mark and what a weak one, how to properly use a mark, etc. If they're on a tight budget they'll be glad to learn from you they can start claiming their trademark rights by just using the name appropriately as a mark followed by the TM symbol; if they've the funds to register, you can handle registering the mark for them; all without being barred in their state. Of course, this is assuming you ensure you yourself are up to speed on trademark practice or being mentored by someone who is.