I'm looking for some advice on how to properly hang upper kitchen cabinets in a renovated 1900 farmhouse. I'm an engineer, somewhat handy, and am open to learning how to DIY things around the house. But I'm by no means trained in the trades.

To add some background, this house was not renovated by us. So it's hard for us to know exactly what's inside the walls. Whoever did these renovations skipped pulling permits and did a couple of weird things electrically, so it has me a little leery of just assuming they did anything correctly. I shoved a borescope camera inside the wall in a couple of spots in case I could see some of the construction. But the blown-in insulation made it difficult to see much.

I at least know where studs are, but I don't believe anyone added any blocking for upper cabinets. So this could get really tricky.…