It's a matter of effort and money. Is she private, or wanting a council exchange? After the Thatcherite reductions in council house stock decent council accommodation is like gold dust, and thanks to the recent wave of repos, rents are on the rise (supply and demand, see?).

When a relative of mine recently moved to Londin, the trick was achieved by spending an entire forthight non-stop trawling the internet, badgering estate agents, and tramping the streets.

How desirable a tenant is your friend? I know a nice little flat in Nottingham (no, not Mottingham, Nottingham)!