I'm considering buying a property in a highly desirable beach community on Cape Cod. The owner has the property listed at 500 ft.² more than it actually is because they are counting an attic that has three mattresses ...

Your wiring could be knob & tube and/or aluminum.

THe last owner hid knob and tube wiring in the walls; this increased the electrical from $2500 to almost $6000 since we how have to rewire all the electrical in the house.

It comes in tube or even buckets.

We ended up replacing most of the wiring in the place as some was knob and tube, and some was ungrounded and not up to current code and safety. 

The videos on you tube are enough to pass the sales exam.

I know what termite damage looks like, knob & tube wiring, and I've seen bad remodel jobs.

As a first timer, I'd avoid anything built before the 1960s that could have cement sewer lines, knob and tube wiring, etc.

know about knob and tube wiring?

So many turn to the basement dwellers with the "command centers" full of pawn shop bought computer monitors of which some are in Porn Hub 24/7 while they shill crypto and for gurus in various spaces like real estate.