Our bill went from around $180 per billing cycle to over $400 per billing cycle.First, check the sidewalk pipe as you suggested.

Is it in the street, under sidewalk,  or on the property?

I have never had to know how much concrete it will take to add a sidewalk around a property, although that was on my exam.   

Maybe the security guards stay on the sidewalk out front of the property so they aren't actually on the premises. 

I realize this thread is about pitbulls/dogs, yet the same items are required whether it is for a dog, or if someone trips over a toy their child left on the sidewalk, a lawsuit is a lawsuit and you are the Deeper Pockets or should I say Bigger Pockets.. 

More "isolated" north side crime.https://www.dnainfo.com/chicago/20170202/wicker-park/armed-robbery-kidnapping-2100-west-division-street-january-8-2017WICKER PARK — A Wicker Park man, snatched off the sidewalk and forced into a car where he was beaten and robbed by three attackers last month, says he wants to warn others about the harrowing four-hour experience that has left him partially blinded in one eye.

______"For Lease" sign must be in front of yard, close to sidewalk and sideways to home.

I'll show more numbers at the bottom of this post.According to the listing agent, the property has been recently renovated, including a new roof, new stucco, new concrete sidewalks, new exterior & interior paint and new landscaping.

I can get you a lot for $15,000 with road, sidewalk, water, sewer, electric, fiberoptics, at your front street access. 

For example, you lease a home to someone who has a guest who punched another guest causing him to fatally his head on the sidewalk.