And apparently from your perspective, British law governs us both. What is a "British Common Law" advocate to do when two different countries follow the exact same Common law?
How is a third country supposed to figure out which British law has the better claim? Or is he up for grabs by anyone?
Again you are projecting. I never stated that British laws govern the US or Canada. In fact, what I said was that each nation is governed by it’s own laws.
“Common Law” is a theory in jurisprudence where greater weight is given to precedence under the concept that it is unfair to treat similar facts differently on different occasions. It is one of the three forms of law; common law, statutory law and administrative law.
The British body of precedents (rulings) is different that the US body of precedence. A US court is expected to follow US common law and a British court is expected to follow British common law.
Really, have you ever studied law?