Well, we'd love a lower budget/DIY option, but would consider patching over it for a bit until we could save enough for a better or more permanent fix.

As a contractor, we only install quality equipment, and unfortunately a lot of cheap off brands can be purchased online.

They said that i have to have the plumber come and bring the house up to code and install a handgate valve. 

Also, with two separate meters I would think that the utility company would need some documentation from the city before installing that.

Because we don’t sell heating and weatherization equipment and materials, nor do we do the installation, we can give you an objective opinion about which energy-saving measures can, and those that probably won't, save you money.""

Therefor, I don't think you can give any general ranges for any of these items.It also depends on the quality of the item that was installed in the first place...and who did the installation.On top of that, items like furnaces, which demand maintenance (changing filters regularly) will have a shorter "shelf life" in rentals since tenants are notorious for not maintaining them. 

These cracks look deep and not something that can be fixed with cement.As a side note, it looks like there is likely leaks in between where the slab and wall meet so on top of doing significant foundation repair, you'll need to install an interior or exterior french drain.I am only going off 3 pictures so I could be wrong but this does not look like a cheap and easy issue to fix.

I've installed Gree twice and after five years, no major problems. 

The landlord reported to S8 that the garbage disposal was not theirs, it was installed by the tenants without their knowledge or permission and they would not be replacing it.

in them;All the trim (baseboards, casings, window boxes) were unsalvageable;14' of the sill plate along the rear wall and 12' along the front wall had to be replaced - this was the big discovery which put us in framing mode for a few days in-between snow storms.We discovered that the vapour barrier was, for the most part, ineffective due to poor installation - the insulation looked like a tired air filter in a shop vac.