Hi,
I was asked for 2-3 letters from friends and family. the letter needs to basically state the following:
- how long has the person, writing the letter, known you for?
- when was he/she introduced to your spouse?
- a few good words about your spouse, yourself and both of you together as a couple.
- make sure it's a 1 page letter, nothing more than 2-3 paragraphs.
- signed and dated by the friend/relative writing the letter.
I hope this helps, good luck