A few of those placed strategically on top of 3-4 inches thick of concrete pavers might keep the problems from getting much worse.Foundation issues are some of the worst problem investors face, unless you know how to fix them economically. 

Also, I analyze REI deals (hence my involvement with BP--I'm one of those people searching the inches of dirt!)

the most fun part was in the lower unit I had to jack up the whole upper story about 3/4 of an inch to take out most of the settling over the worst window frame.   

How do you deal with a basement which floods with 4 inches of water when it rains

Once the leak was fixed the pier returned about 98% to it original position leaving a slight hump in the floor.I chiseled a couple of inches off the top of the 10x10" concreate pier and the laminate beam pretty much stayed bowed. 

I also recommend using 1/4 inch plywood underlay with the floating plank.

The water heater manual will tell you how many square inches of vent area you need.Is the closet in a garage or basement? 

Last year when they moved it was a massive bed of deep-rooted weeds, and the sides of the planter were nailed to deep posts in the ground and nailed to each other ever 4 inches or so.

You would only be loosing an inch or two of ceiling height, and you'd be saving yourself some serious headaches that comes with abating asbestos. 

I am applying for some permits in Houston Texas, and one of the asks is to draw a diagram of the warehouse indicating dimensions of the premises in feet and inches, and show where all the doors are located.