A little heads-up: your client may stumble upon something like this, which I came across just last night:
http://www.google.com/search?sourcei...space+for+rent
On my results, the first one shows up as the following:
greater-toronto-woodbine-highway-7.commercial-office-space-for-lease.space4lease.ca/
Now that's some serious keyword stuffing, although I did actually find the result I wanted.
I haven't seen this for anything non-obscure yet (like office space for rent anywhere other than a specific GTA corner) so that would probably be the case for whatever your client finds.