The following supporting documents are required:
completed application form VAF2
your current passport
your old passport or a copy of it
two recent passport photographs (not more than six months old)
Immigration status (Original not copy):e.g. Permanent residence card, Valid I-94 H1-B - L-1 - B-1 I-20 (Signed on reverse side) IAP-66 Employment authorisation card with advance parole document
evidence of funds available to you, for example recent bank statements covering at least the last three months
a written invitation from your sponsor in the UK and a copy of their British passport/EU passport or UK residence permit
evidence of your current accommodation, for example mortgage or tenancy documents, utility bills, etc.
evidence of your sponsors accommodation in the UK, for example mortgage or tenancy documents, etc.
evidence of your sponsors employment or intended employment in theUK, for example a contract or offer of employment, salary slips, etc.
evidence of contact between you and your sponsor for example letters, email, telephone bills, etc.