You need a provincial attestation letter (PAL) or territorial attestation letter (TAL) to apply for a study permit. This affidavit of support provides financial sponsorship for a student.The sponsor certifies that they are willing and able to support the student financially. Learn all about writing an affidavit in support of student visa for your education abroad, with two sample letters for reference. Sample of Affidavits: AFFIDAVIT REGARDING SPONSORSHIP DECLARTIION 1. Completing and signing Form I-864 makes you the sponsor. An affidavit of support is a legal document that demonstrates financial backing for a foreign national seeking to immigrate to Canada. You must prove that you can support yourself and the family members who come with you while you are in Canada. All documents provided in an affidavit of support for students must be original and authentic. Proof of fund is one of the most critical issues if you are planning on Immigrating to Canada or USA.