What are the visa & residency requirements in Antigua & Barbuda?

"Visiting Antigua & Barbuda requires a valid passport and proof of pre-booked accommodations for the entire stay. Additionally, some travelers may need to obtain a visitor's visa before entry. The visitor's visa can be applied for in advance by submitting a completed application form, along with a valid passport, a 2-inch head and shoulders photograph, proof of onward or return flight, and a letter of invitation if needed. The visa, if issued, will be valid for tourism, business or transit purposes. Those who wish to apply for residency in Antigua & Barbuda must first establish a business or purchase property in the country before applying. Applicants must provide a copy of their passport and two passport photos, a completed residency application form and any other supporting documents specified by the government in order to qualify for residency. Additionally, the applicant may need an affidavit, police certificate, a non-refundable application fee, proof of medical insurance and other financial documents depending on the type of residency desired," said another expat in Antigua & Barbuda.