FUNDAMENTALS: Documenting Ability to Pay Evidence–National Interest Waivers –Petitions for Extraordinary Aliens/Aliens of Exceptional Ability–Permanent Portability–What to Do When It Is Unavailable–Ethics of Changes in Employment Prior to Portability–Ethics of Intended Job vs. Continuing Job When Portability “Vests”–Portability in Removal Proceedings (Perez-Vargas)–Consequences of I-140 Revocation–Q