Green cards, Res visa, work permits. One world and very political. Licence recognition, can get very arrogant. A marriage (?) forget it. Another time, looking at the Canadian route, I was told by a Canadian Company that they would "love to hire " me but needed me to first produce a Res Visa. Canadian Embassy would not unless I had a specific job offer. I told them that the Company first needed a Res Visa and asked if both sides might entertain a discussion. Never heard from either again and just dreamed of sipping a Jack & Coke in Vancouver Heights !