@Kalpesh Gada  I would imagine, like stairs, pools are expensive for landlords to insure.  

I would still fill those voids underfoot with Super Patch or a similar inexpensive patching compound if you do that.You mention early in the thread about not using "concrete products" on floors that rest on joists...you're talking about cement-based self-levelers.

I somehow managed to qualify for a conventional loan but had to put some money into escrow to fix the front stairs.

The stress dynamics of supporting a 2-ton+ vehicle call for special construction if not placed directly on a properly prepared cement or concrete slab.Advice:  address the foundation issues and move on.

There is a staircase going to the attic but you have to duck on the top stair under an angled beam if you are taller than 5 feet or don't carefully stay all the way over on the right. 

So if it’s cheaper maybe just fill it with cement.

So for closing at the walk through the buyer wanted the muddy carpet cleaned...tons of little muddy footprints from the creek, across the cement patio through the carpeted playroom to the tiled bathroom. 

You stair people in the eye, no speaking, expressionless, until they break eye contact, then they agree to terms.

Check the gutters, downspouts and grade of soil/cement around the house and make sure it's draining properly as a lot of basement moisture issues can be fixed by backfilling and extending your drainage further from the building.

I have a cemented cage around the condenser itself - which probably spared me from losing that as well.