I’ve had trouble in the past with dealers not wanting to write leases out of state but with the Stinger I talked to 10-15 out of state dealers and none of them cared about me being out of state.
A couple points to think about.
When calculating taxes make sure they know where you live and calculate for your taxes.
I think the rebates vary by region and your region is used to calculate rebates. So if you live in the NE but Kia is running great deals in Cali, unless you are registering the car there you can’t get those deals.
You will have a bit more of a hassle getting tags as the dealer will need to send paperwork to your DMV.
I bought mine in another state and the only issue was getting the right paperwork to get my plates but a quick call to the dealer’s title person solved the issue.