Hi,
With a good broker you should be able to get 60 to 70% for single apartments. For apartment blocks it is dependant on the yield
5/5.5%=apx 50%
5.5/6%=apx 60%
6%+ upto 70/75% (rising from 60)
Of Course this is dependant on status.
One thing to watch out for is mortgage brokers who don't charge commission. Sounds like one of them has sold me the line

but its certainly worth taking on board.
Brokers who charge commission will (should) go to many banks and shop around for the best deal. Ones who don't will generally be tied to one or maybe two banks and you may therefore get a significantly worse deal (or none at all). Levels of commission are a totally different subject though
If you want to know the details of the firm we work with simply give me a shout,
Kind regards,
Andrew Stanley
Alpha Real Estate Investments