Travel Dream said:
I sorry to say that ... this is totally wrong. First US allows dual citizenship. Second, those countries which do not allow dual citizenship they force you to give up the other citizenship and bring the renounce certificate and if you dose not agree you will loose the citizenship of this country.
US doesn't officially recognized dual citizenship. It does realize that there are people who are dual in their country but that doesn't mean they accept dual. They will only recognize American citizenship side only.
Even their law states that all Americans must use their US passport to enter regardless if you are dual or not. You cannot even enter US using your non US passport. If US officially recognize dual citizen, they would have allowed Americans to use their foreign passport to enter. As long as their law states that they must enter US using US passport, that means they do not official recognize dual citizenship.
My children are dual, American and Canadian. Even they cannot even enter US using their Canadian passport.
It is true that some countries do not allow dual citizenship. However the onus is on the OP to prove that they officially renounce it in order to keep the new citizenship. If the Canadian doesn't complete the renunciation process, the Canadian is at risk of losing the newly acquired citizenship.
Simply by checking a "yes" on the form with no signature, with no official renunciation in front of Canadian officials is not enough to make OP lose Canadian citizenship. The whole process takes about 3-4 months to do.
The OP would have to prove to Canadian officials that he/she has another citizenship so that the person cannot become stateless. More paperwork. Just by checking "yes" and without sending it in with application and fees and documentations is not going to work.
I am only going by what the OP has said. "Only remember checking yes on a piece of paper" and that was it. If the OP doesn't remember any more than that, it probably no even official renounced at all, as far as Canada is concerned.
In order to renounce Canadian citizenship, you have an application to fill out, plus documentations and fees. At some point, you would have to go to Canadian officials and swear in front of them as last step before the citizenship is officially renounced. After the renunciation, the applicant would have to surrender Canadian documents, including SIN card and Canadian Passport, The whole process takes about 3-4 months to complete. If the OP don't remember doing any of that, it probably means, the OP still have Canadian citizenship.
Screech339