This area has many oil and gas factories, plastic factories, steel factories, etc.

Some plastic boxes fixed that problem. 

Then, head to the hardware store and lay in a supply of plastic drop cloths and blue painter’s tape.

List of items to be done - (inspection next weekend)HVACAir Conditioner addition to current forced air furnaceElectricalGarage door motor to 1 car garage door Install recessed lights in living room, and new light fixtures in bedrooms, living rooms, kitchenReplace light switches/outlets to square plastic whiteFlooringRemove carpet, tack boards one main floor and top floorInstall vinyl plank flooring throughout main floor Same baseboardPaintingPaint all wood trim whitePaint kitchen cabinets whitePaint all wallsStructuralRemove half of kitchen wallSliding door for half bath on main floorKitchenReplace kitchen counter top, and match bathroom vanities with sameReplace kitchen sinkReplace appliances with stainless steelBathrooms Replace countertops with same kitchen counter materialGeneral workInstall window blinds on all windows

As far as just sealing it up where rodents won’t get through you could even use the side of an old plastic tote cut to fit with a little silicon around the edges to close it off.

hey just some advice from a plumber ive been doing plumbing for 5 years nowyou said you had a iron sump pit, likely the pit is beginning to corrode and thats the cause of the iron deposits, now a days most pits are made from composit plastics ,another possibility is the piping could be the cause if its a metal pipe [iron or galvinized steel ] it could be contaminating the water being pumped out, again most pipes now a days are PVC either sch 40 ,80 or ABS to prevent this issue, it could be the pump is corroded and failing but if its working i doubt that its that ad if the pump was that bad it likely would have failedother than those the only other thing that comes to mind is that it could be something in the basement that is made of iron or steel that is in the pathway to thw water on its journey to the pit.hope this helps

Yes, you can charge them, and you can sue them, but you can't recover 100-year old woodwork original to the home if someone decides to tear it down and replace it with new plastic foam board molding.

Then they started unfolding this great big heavy duty plastic bag. 

Mine did too at first, but reality set in after a few months of washing dishes in the laundry sink, and having plastic hanging in the shower, her enthusiasm waned.I'm not suggesting you don't do it, just pointing out that the idea of it and the reality of it are not necessarily the same. 

Now, we're not talking an 18 foot deep high dive pool down there...it might be 1" - 2" deep (but, I'm still trying to decipher the photo from my inspector and get a hold of him).It also (oddly) looks to be on top of a sheet of plastic.