I'm a tax lawyer who helps wealthy people move to lower their taxes — and prepare for residency audits

• As a tax lawyer, Mark Klein, has seen wealthy individuals continue to relocate to tax-free states.
• While savings are the main reason, cultural fit also plays a role in relocation.
• For movers, it isn't as simple as picking up a driver license — you must prove that you live there.

This as-told-to essay is based on a conversation with partner and chairman emeritus at Hodgson Russ LLP, Mark Klein, who specializes in tax law. The conversation was edited for length and clarity.