For example, say the toilet is clogged up, the owner calls a plumber and they snake the line and recover a tooth brush of the tenant. 

I made the app because I was tired of people getting hosed by the tv personality gurus coming into my town and basically selling snake oil.

Your introduction came as small bolt of thunder.

Not to steal your thunder here, but I have a tax question for you :)Here is the scenario: active duty, owns townhouse in NC that is being rented.

This assumes this is access inside all the walls (No hours snaking stuff through pinholes) and not adding a ton of extra stuff and this is the rough and I'd expect to pay more for the final stuff and those supplies if I am not supplying.Derreck is right that Cambridge, as well as most parts of Boston and many of the other cities right there, that it sucks to get there and to work there.  

That will allow them to run a snake either direction from outside the house.

The only properties that seem snake bit to me are REOs since they are conveyed by special warranty deed or limited, where title is not warranted by the seller and they are sold "as is", but title is insured.

I would approach my resale pricing (homes and cars) by MY bottom line, people just expect to be squeezed sometimes...Moral of the story: Stick with good, honest people, the good deals will still come in, and I've always heard a horror story a few months later about the same deals I thought I got "snaked" on.

You don't want to be snaking toilets at 65 right?

There is plenty of free data in the field of real estate investing out there. .I also agree with Will People in this business do a disservice when they break out snake oil and try to slip you a bill for 60k and say they will get you rich.