Does a letter of residence need to be professional?

Question

I need to write a letter to SSI as proof that my father lives with me can some one help me do this?

Answer 1

The following free site of letter templates should be helpful to you:

http://www.kndata.com/rap/templates/friendly-letter-template.html

Answer 2

All you would have to do is address to Whom It May Concern: and state that your father is living with you, give you address and end it with "if you should have any questions, please feel free to contact me" give your number, and end it with Sincerely,...
I hope this helps.