If you live near a state line and are commissioned in multiple states, you can upload each commission you have to your account. Follow the instructions here to upload your commission.
In terms of receiving notifications of signings in multiple states, our search is based on signing agents' distance from the signing location and surfaces signing agents within the mile radius specified by the company searching. City, county, and state borders are disregarded.
As long as you have an uploaded commission in the state where the signing appointment is taking place, you'll be eligible to receive signing opportunities in that state.