Inspection period advice needed.

[Jean-Thierry Aleman]

I am currently going after an REO. It is a full gut rehab. Everything needs to be ripped out and redone except plumbing. I had my contractor walk the property with me already but (there's always a but) this house has a pool. He does not know anything about pools. The pool looks more like it's own ecosystem..... Frogs, plants, primordial ooze/slime. I know I need to have it inspected so I know what I'm getting into in case of leaks or other catastrophic issues.

My fear is others will not have inspection period just to get the deal. They already know everything needs rehab so why bother attitude.

1) How many days inspection period should I put into my offer to still be competitive?