Sorry, seems that this forum doesn't allow the website to be written here.
Anyway, I've PMed you both the URL...
Disclaimer: I am in no way affiliated with the website. I'm just telling you the medium that I used to find my first place when I first arrived in Singapore, and also my second place where I'm currently living for 2 years and still loving it

(my second flatmates pretty much kept to themselves, and no friction ever happened with us. All the bills are settled quickly, and we are able to compromise about everything else)
The landlord also doesn't live with us, and isn't so fussy about the place. They just collect rent every beginning of the month, and that's it.