Probably just need an "all States endorsement" on your current policy. That's what my insurance agent told me to get back when I was a contractor. Call your agent. My recollection is that it does not cost much extra and saves a ton of headaches. If you have no policy, just ask for an "all States endorsement" when you purchase one. And be sure to lowball the anticipated payroll since your premiums will be based on that. At the end of the year when you submit your real payroll, you may owe a little premium if your anticipated payroll was higher but so what, you'll have the money because you made the money.
This is CABL.com posting #345185. Tiny Link: cabl.co/mbBXF