I know this one Brenda!!
Get yersel down to the shops then ask someone behind the counter for a writing pad, and a pen (one with black ink is best). As for the content? How about:
Dear Tenant,
I want my house back so I can live in it myself. Sorry if this makes you homeless.
(A friend tells me that this second sentence is optional, but it may help your friend's defence if her tenant sues for being illegally evicted) - bloody commies, eh?
Yours sincerely,
The Landlord
It's best to put the letter in an envelope but it's not a requirement. if you want to be really officious try putting a stamp on it and then post it through one of those big red boxes you see in the High Street. Naturally, you'll need the envelope if you decide to take the fancy route. I always find that when a letter is stamped without the use of an envelope, it kind of takes the shine off things.
Regards,
Stu