Top 10 Ways to Prove a Bona Fide Marriage (Without Kids) If you and your spouse don’t have children together, you’ll need strong evidence to prove your bona fide marriage for immigration purposes. Here are the top 10 documents you should have: 1️⃣ Mail addressed to both spouses at the marital address 2️⃣ Life insurance listing your spouse as a beneficiary 3️⃣ Shared medical insurance policies 4️⃣ Joint credit cards that both spouses use and are responsible for 5️⃣ Joint car ownership or lease 6️