Do you do an inspection if you are rehabbing everything anyway?

[Vilfreda Hoagland]

Greeting fellow investors, 

I am doing my first rehab with hard money.  In the past I got houses that were move in ready so I did inspections as natural course.  I'm under contract and seller is refusing to turn on the utilities.  I am planning on doing floors, bathrooms, new AC, and other things so most of the house is getting fixed up. I want to do the inspection because I am afraid there is something in the electrical, plumbing or roof that may cost me way more than my budget.  

How do you handle this situation? Am I being too stringent?  There was a tenant that was evicted so there were people living in the house a few months ago.  Is it even worth it to do an inspection without utilities on? Thanks for your help.