Here's the list of documents I submitted for anyone who hasn't applied yet:
Cover Letter
1. Sponsor’s Letter of Introduction
2. Applicant’s Letter of Introduction
3. VAF4A Application Form
4. VAF4A Appendix 2
5. Applicant’s Biometric Information
6. Applicant’s English Examination Results -
only necessary because he is from a non-English speaking country7. Sponsor’s 2013 Tax Return -
wasn't required but I submitted it anyway8. Sponsor’s wage slips for previous six months
9. Sponsor’s bank statements for previous six months
10. Letter from sponsor’s employer confirming current employment
11. Signed contract of employment for sponsor’s current position -
I heard conflicting reports on whether or not this was required12. Sponsor’s UK job offer confirmation letter
13. Accommodation: Invitation Letter
14. Accommodation: Land Registry -
I believe this is strongly encouraged and you can print it offline for a couple of dollars from http://www.landregistry.gov.uk/ [nofollow] 15. Accommodation: Photos of House -
not required but I included just in case, since I didn't have an inspection report16. Accommodation: Council Tax Statement
17. Marriage certificate
18. Itinerary for joint trip to New York City
19. Itinerary for joint trip to Boston
20. Joint Aetna health insurance card
21. Sponsor’s US Passport showing Colombian spousal visa
22. Sponsor’s British Passport
23. Applicant’s Passport
24. Ten (10) photos
25. Applicant’s Passport Photos
26. Planned Itinerary
The evidence of the relationship will obviously depend on the couple. We didn't have skype logs or anything because we've always lived together. However, our lease and bills have always been in my name so I couldn't include those.
Before submitting the application, I spent DAYS looking up what to include, so feel free to message me with any questions!!