Quote Originally Posted by niko_cee View Post
Aye, it'd be fine if they were paying market rent like everyone else in the story.

I've never even heard of a protected tenancy.

Sounds like they are going to be quite rare:
My friend bought a house in London for relatively cheap because they had to keep the previous tenant because of this reason. They built her a flat at the bottom of the house so that she can continue living there at a relatively low market rent. So if you want a cheaper house, find an immovable tenant is my advice.