APs in a condominium...

I would want to install some APs in a condominium.
There are 3 floors and 10 apartments every plain.
I thought about installing some APs, connected in Ethernet LAN, in the corridors so that to cover 3 or 4 apartments with an alone AP.
Is this possible?
Which produced I should use?

Thanks

It depends on the thickness of the walls and ceilings, and distances. You will have to do some measurements. I think the RB2011UAS-2HnD-In is the most flexible, as it has external antennas, which can be upgraded to bigger ones, if needed. Or a custom enclosure with the new RB911 inside

Another consideration is to check if foilbacked plasterboard is used, if yes forget using one ap for 4 apartments, i would simply place a ap in the corridor and check using wirelessmon for signal levels in the apartments
http://www.wirelessmon.com/

Hi
Ok, but if it was not enough can I connect an AP in every apartment with the WDS?

Thanks