I'm not sure I can give an example, because normally the country's own law would determine, first of all, whether parents from abroad can adopt. Some countries don't allow it. Then, once this is done, there is a different type of requirement. Residency is one of them, for instance: do the parents live in the country or not? Are they within a certain age group? There are a number of variants, and from one country to another the situation might differ considerably. Some countries ask for the parents to live three years in the country before they can adopt, so very few Canadians adopt there.
On December 13th, 2010. See this statement in context.