If you hold German citizenship, whether dual or not, then there are no occupancy requirements.
You can apply for dual citizenship to the USA and almost any other country. Many more people than you might think hold dual citizenship. But the road to dual citizenship, with only a few exceptions, is long, twisting and full of "gotchas".
Yes, as long as you are not a defector.
Since you have British citizenship, for an unlimited period of time.
Being already a Filipino citizen because of Dual Citizenship, You can stay as long as you like.
The time it takes to obtain dual citizenship varies depending on the country's laws and requirements. It can take several months to several years to complete the process. It is important to research the specific requirements of the countries involved and follow the necessary steps to obtain dual citizenship.
Yes, individuals with dual citizenship can apply for Global Entry, as long as they meet all the eligibility requirements and provide the necessary documentation for both of their citizenships.
As long as said person has a citizenship in Mexico, they should be able to stay for as long as they want. However, it may be wise to get an identification card, but it shouldn't be needed.
For as long as your visa is valid, unless you hold German citizenship.
Generally, as long as you want. Some counties (UK for example) allow citizenship to be revoked by the government unilaterally (i.e. they think you're a terrorist, and you have citizenship in another country. Cannot lose U.S. citizenship unless you revoke it, in person, outside the U.S. at an embassy.
As long as you are living in Canada and have citizenship you qualify for health care.
If you have Brazilian citizenship, you MUST enter and depart Brazil with a valid Brazilian passport. With a Brazilian passport, you can stay there as long as you want..
If you are an Italian citizen you can live in Italy whenever you like as long as you like, regardless of your other citizenships.