Can a US citizen live in Brazil?

Yes, for any type of travel American citizens need a visa to enter Brazil. Brazil maintains a reciprocal visa policy whereby a visa is required by any citizen of any country requiring Brazilian citizens to obtain a visa. U.S., Canadian and Australian citizens require a visa for any type of travel.

For a tourist visa, citizens of Great Britain and New Zealand do not require a visa. Visitors traveling from Great Britain and New Zealand for any other reason except tourism should check with the specific Brazilian Embassy or Consulate having jurisdiction.