Marriage affidavit letter also known as I-751 affidavit letter of support is a letter written to the immigration officer supporting the legitimacy of the marriage of the couple who have applied for residency for their spouse.
Marriage affidavit letter can be written by anyone close to the couple. It can be their friends, family, and even leaders of their religious institute. The person writing the letter can be a US citizen, resident, and even a citizen of another country.
When a couple seeks residency for their spouse, the immigration starts from a place of suspicion. Their basic assumption is that the couple’s marriage is a marriage of convenience or a forced marriage. So the couple who applies for residency has to prove to the officer that their marriage is legitimate and not for convenience and it is a willful marriage not a forced one.
Marriage affidavit letter is used to support the claim of the couple. When you write this letter you need to mention your relationship to the couple and how long you have known them for. You then need to include their relationship history. You need to share your knowledge on why you think it is a willful and legitimate marriage. You achieve this by stating how they met, how their relationship grew overtime and turned into a long term commitment by marriage. You should share any information you have of them vacationing together, spending time with family members, having kids, etc.
You can find samples of Marriage affidavit letter on Google and use them for a reference. Or you can reach out to an immigration attorney who can also help you draft a proper letter with relevant facts. They will be able to guide what all to include in your letter so their claim becomes strong.
