Should I get an inspection?

[Chad Tate]

Though I've researched this topic, many of the posts were not only older but had mixed oponions, so I'd like to raise it again. I'm a new investor working on a possible first deal. I'll be buying a buy and hold property 2 hrs away from another investor who has presented all his projected numbers to me. These numbers included an estimated rehab from  GC he has used for several years. I noticed the contract said as-is with no option period. When I asked him about doing an inspection he said that is what the GC did and that no inspection is necessary. I realize a GC is not necessarily a licensed inspector, so should I ask for one or not? As far as I can tell, the property has been vacant for about a year and the utilities are likely off. How did the GC inspect the oulets, HVAC, water heater, etc. with no utilities. Just a little concerned and wondering what you would do?