You do not need a 2nd passport to live abroad.
You do not need a 2nd passport to live abroad. 
You don’t even need a 2nd residency to live overseas, but it certainly makes life easier and more convenient. Many people for the first year stay in country on a tourist visa and either leave the country periodically or go to immigration to have the tourist visa renewed periodically. Obtaining a permanent residency takes time and some hassle, but is worth it in the end if you decide to stay in your new home country.
You don’t even need a 2nd residency to live overseas, but it certainly makes life easier and more convenient. Many people for the first year stay in country on a tourist visa and either leave the country periodically or go to immigration to have the tourist visa renewed periodically. Obtaining a permanent residency takes time and some hassle, but is worth it in the end if you decide to stay in your new home country.
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