Thanks again - it's good to know that my research appears to be correct!
However, I'm still going to get a written opinion from a local Northern Virginia CPA to: a) verify that a Pennsylvania sole proprietor providing services to a Virginia-based company and receiving a 1099-NEC has zero tax liability to Virginia; and, b) determine whether there are any local jurisdictional requirements (e.g. a surety bond or some other bureaucratic paperwork) in order for me to be compliant in providing services within that jurisdiction. I'll post my findings.
