Dunno bout you all, but so long as Harvey could add his two cents about hide outs he at least continues to have relevance. If I may make the assumption, Harvey's history with the Inquisition may have taught him certain "Hideouts" within the area they take up. Hidden-in-plain-sight sort of locations that not only make it easy to access beneath suspicion, but also have a very selective entrances. This method is a double edge sword, as those within the safe houses can keep an eye out on those who come and go, but if their cover is compromised there's no way out but through the enemy. It's definitely risky, but this plan also relies on the fact that no one but an Inquisition member would know about it (Which Harvey was), which also would mean that it'll be the last place for the Inquisition to look. Of course being one of their safe houses it's only a matter of time before someone comes along, maybe not anytime today but still not long enough to hide out forever.

There's also the issue with the fact that most of the characters are somewhat well known members of the guild or at least associated with it. If the Inquisition is competent enough, it won't be hard for them to find out the location of everyone's homes or frequented places in the city, and even the guild may not be safe if they have agents within. Or could make everyone selectively memorize details, given that the entire fiasco at the tavern went largely unnoticed.