offer contingencies

[Alex Flowers]

I need some education on on the science of making an offer on a house before having a chance to have a contractor give me an hard estimate. I know in a perfect world I will have time to schedule an appointment with my contractor and have a rehab number before submitting an offer, but I know this is not always the case. Sometimes time is critical. How do you structure an offer without the estimate? Surely it's not a complete crap shoot. I just worry about making an offer, then finding that all the wiring needs replacing, or some other major project that my virgin eyes don't see. Thanks for any help.