What I look at
The frame and the foundation. Raised foundation or slab. Anchor bolts through the sill plate, or none. Bracing on the cripple walls, or none. Cracks that tell a story and cracks that do not.
The water's path. Grades along the foundation. Downspouts and where they empty. Yard and driveway drains and whether they drain. Below-grade walls and what stands between them and the soil. Thresholds the water can reach. Stains inside that point at a leak outside.
The shutoffs. The main water shutoff, the gas shutoff, the main breaker: where they are, whether they turn, whether you can find them in the dark. I label them while I am there.
Three days without power and water. Which circuits matter in this house: the refrigerator, a sump or well pump, medical equipment, one light and one outlet per floor. What runs with the power out, checked rather than assumed. Where a generator inlet and a transfer switch would go, for the licensed electrician who would install them. Where a water tank would sit, for the licensed plumber who would tie it in.
The first five feet. What is against the walls and under the eaves, for the houses in the hills, read against the Zone 0 Courtyard page's code lines.