I'd definitely add a refrigerator and some appliances to that floor: toaster and microwave to make it more accommodating.

-Windows, countertops, stove, oven, refrigerator, bathtubs, toilets, sinks, and cabniets must me wiped down, clean, and fresh.

Also, I would like to get extra deep cabinets for the areas above the microwave and refrigerator.

We decided to add a new stove and a refrigerator and installed a new microwave that hangs on top of the stove.

For example, if you spend $3,000 for a new stove and refrigerator for a rental unit, you may deduct the entire amount that year with Section 179.Assuming I can meet the IRC 162 threshold, is this as straight forward as it appears for owner's of residential real estate rentals?

Some of the larger expenses-Interior/Exterior Paint, Storm shutters for a few of the front large windows, added additional cabinets to one unit,  New refrigerator from Dent/Scratch store after old one died,  Laundry units that tenant pays +$50/mo for etc. 

I see I made a major deficiency in purchasing my current property with the age of the key items, e.g. gas furnaces, water heaters, washer/dryers, refrigerators, stoves, plumbing, electrical, etc.

We replaced the refrigerator because it’s temperature was varying more than it should; she monitored its temperature.  

For example, a quick "back of the napkin" conceptual estimate (WAG) suggests the following:Appliances (dishwasher, refrigerator, stove, hood):  $3,500Kitchen sink, disposal and faucet:  $500 (material only)Kitchen hardware:  $200 (material only)Kitchen cabinet restoration:  $3,000Kitchen countertop restoration:  $1,500Plank flooring:  $3.50/SF x 2,000 SF = $7,000 (material only)Electrical rehabilitation (including light fixtures):  $4,000Plumbing rehabilitation (including toilets, faucets & shower):  $3,000Bathroom tile (2 baths):  $5,000  New roof:  $10,000New siding:  $6,000Paint (outside):  $4,000Paint (inside):  $5,000Staging: $1,650TOTAL:  $54,350This estimate does not consider any cost associated with building permits or design professionals. 

Let's assume that in 15 years you will have to replace the following: house roof, refrigerator, a window that broke, and to retile the bathroom walls.