As someone who has worked hundreds of construction defect cases in commercial buildings, what you want to hire is a forensic engineer that goes behind and writes reports/does litigation against builders who fuck up. They know EXACTLY what to look for, and their job is to make sure it's done "right."
I've hired this guy on many projects and he's always done good work:
Mr. Drew Hayes is a graduate of the Texas Tech University College of Architecture with a Master of Architecture degree. As a registered architect in the State of Texas, he has over 22 years of architectural building, site, planning, construction, remodel/adaptive reuse, and development design...
rimkus.com
I'm not saying hire that guy, but someone like that who does inspections and construction management. The "inspectors" that come to look for your $500 pre-purchase inspection or whatever basically makes sure the appliances work and there aren't catastrophic leaks or something. I remember watching the guy in my house and he was like temperature testing the oven to make sure the setting was reasonably accurate. I remember him saying something like "well it's accurate, so if your turkey is dry its your fault."
So helpful, thank you sir, I could never have done that myself.