Like others have said the first year is still the worst due to things missed which should be minimized but after that it should get better.  

Worst case, you use or lawyer to review contracts.

I listened to one of those motivational video/audiotapes that says the worst thing you can do is to set your goal too low and achieve it.   

As other people mentioned, you may be able to patch rather than replace the whole line.Sewer pipe repairs are the worst problem you can have.

This is all “planning for the worst....”

There is no tourism in my town (the worst town to live in Kansas). 

Realted to what you're saying @Nina Hayden:The much hyped new BP Insights analysis dinged Plano, and TX in general for worst performing rent growth."...Florida dominated the top performers, Texas represents 40% of the most troubled markets from a rent price perspective."

I’ve had a few discussions and have been told Wisconsin is one of the worst States for rentals.Appreciate your time and feedback!

Worst thing to do is a analysis paralysis and ultimately do nothing.

What’s your worst case scenario?