This concerns me: "...states could still make a case for taxing the former employer." That makes it sound like if My Company in my state has any interaction w

This concerns me: "...states could still make a case for taxing the former employer." That makes it sound like if My Company in my state has any interaction with Your Company in your state, both of our states can suddenly make a case that we're both doing business in both states and they'd try to hold us responsible for additional tax.