Your relative's boots look great but wouldn't match up to your list of requirements. The way the tongue/front of the leather attaches leaves a huge overlap where water can enter. They'd likely be fine in light rain but certainly not "terrible weather"

Personally I'd go with a pair of Nick's or White's boots as a primary but then buy a cheap pair of Timberlands or discount boots from r/frugalmalefashion for chores and car repair. You don't want to ruin your nice pair with toe gouges from kneeling down if the same pair will serve as your nice date/office boots.