Can you answer questions regarding other nations of the world? or is it restricted to the USA alone?

This is unclear. I am unsure whether you will find an immigration attorney who practices or appreciates this situation. It is wise to check with the New Guinea Mission to the U.N. or the New Guinea Interest Section or Embassy in Washington for more information.

On occasion, there is internet fraud. There may be some sort of program, but you may be able to get the details directly from the Nation of New Guinea, rather than becoming a victim of an internet immigration scam. You may overpay for such a privilege. In addition, New Guinea may not be the nation that you expected once you spend significant time. Do some research before commiting to immigration, even into the U.S.

The above is general information and does not create an attorney-client relationship.