BT, SKY, Plusnet are all fine.
Personally I would avoid SKY since they require that you unbundled you voice line which doesnt sound like a good idea for a rental property, especially if you want a short contract.
Have you checked whether FTTC/FTTP? Not sure if anyone does short contract for FTTC/FTTP though. The install charge from BT OR to the ISP is £80 or so and they impose a minmum 12 month contract on the ISP.
I think you will need to discuss with the other residents .........
BT Infinity 2 - IP profile 77 / 20 - super fast!
Previously BE Unlimited - 21,000 Download 1,200 Upload but then moved house - 6,500 Down, 1Mb/s up - gutted!
Ex <n>ildram , been to SKY MAX - 15,225 Download