Brian, the cities charge this for sewer and street work as well as sidewalks in many cities in wisconsin.

About halfway down the hill, ground water would come out and make the sidewalk and stairs slippery.

I did have some elderly tenants and the sidewalks were a mess from the City owned trees. 

The sand I saved to bed in the water line .Second was to dig a 4 ft deep trench from the house to the well head  This was 80 feet long , had to go under 1 sidewalk and move stone out of driveway to be reused .Third  was to lay in the water line and electrical conduit . ( I could have just layed the wire in the trench but  I prefer conduit )  And then hook into the old well line .  

We have sidewalks, but they aren't used type hood, LOL..

Its its a side by side duplex where each tenant has half the yard and sidewalk, I'd make it the responsibility for each one.

And gaining the cooperation of an heir to acknowledge their beneficial interest, especially if small, can be daunting, like people who pass by coins on the sidewalk.

So, if you're planning on acquiring properties in affected areas, I would suggest you become an expert at moisture mitigation, mold removal, have the capital to weather another hurricane and the possible event of your insurance provider declaring bankruptcy and going belly up after such an occurrence.Consider this: https://www.theatlantic.com/technology/archive/2017/08/why-cities-flood/538251/*Houston, including its roads, parking lots, sidewalks, and other pavements, along with asphalt, concrete, brick, stone, was originally developed on land that, not for it's development, would have naturally absorbed water.

The lease agreement says: "Tenants are responsible for proper yard maintenance and upkeep including but not limited to mowing, watering, cleaning gutters, raking, and shoveling of sidewalks".Are there any Colorado Springs or state of Colorado laws that would prevent an owner of a home from requiring the tenant purchases their own equipment?  

The responsibilities are written into the lease and I go over it with the tenants.With multi's especially on the city, tenants have a tenant mentality, and customarily they pay the rent, expect the sidewalks to be swept, garbage taken to the curb, grass if any mowed.