I am travelling to the UK then France and Switzerland. I have set up an appointment with the UK visa office first, based on available guidelines. I am travelling with my wife and 2 kids. Do we need a cover letter for each one?

My brother, his wife and their 2 kids are going with us. Will it be good to have a single cover letter for all of us? Can we have 2 cover letters, one for each family, and mention the 8 names to ensure we all get treated as a single application?

My brother has the necessary funds. He is in the family business and hence I’m also submitting the bank statements and registration of our business. Would a cover letter from my eldest brother for him to confirm that he has access to additional funds if required help?