We keep a detailed list of what is done on what day and how long it takes.I'll paste in a portion of a move out accounting, you can see that we don't indicate who did the work, us or a third party:Itemized Repairs and Related Losses to get unit back to move in condition:$622.00 Replace carpet and pad (see comments) $24.00 Kilz primer to paint flooring to block pet odor from new carpet $10.00 Purchase and install missing end cap in fridge$300.00 Repaint unit: walls heavily stained $20.00 Replace door jamb in bedroom (materials) $6.00 Replace toilet seat (materials) $80.00 Labor to complete listed repairs and remove carpet Total Repair Cost: $1,062.00Necessary Cleaning to get unit back to move in condition, all at a rate of $18.00/hour: 3 hours to clean kitchen: empty fridge, clean fridge and stove, remove canned goods left, scrub counters and flooring2 hours to clean windows: remove dirt from sills, wash blinds1.2 hours to clean bathroom: scrub floor, remove hair from shower walls, clean sink and toilet4 hours to scrub living room and bedrooms: mop floor, clean walls, deodorize bedrooms, clean baseboards (very grimy)-4 hours for normal wear & tear/acceptable landlord cleaning for one year occupancyTotal Cleaning Cost: $117.00

And I noticed their offer letter said to convey the fridge but not the washer and dryer so I sold those on the last day for some extra cash.

If no one is occupying the unit and you are in the cold winter months... unplug all appliances including the fridge (they love nesting near the warm compressor motor, and the dishwasher also provides a warm humid environment), open all cabinets and appliance doors. 

If things are just old (like oven heating element going out, fridge compressor quitting, etc), then you just have a good chunk of things that are fully on you to fix.

For my area, a unit missing a fridge isn't going to be rented very easily, where as I don't provide washer or dryer but have the hookups.

My tenants 1 year lease ended but I noticed 4 dents on the brand new stainless fridge (1 year old). 2 on the side due to a door banging on it repeatedly and 2 on the front.

The one I am looking at, all the tenants have mini fridges and that's it.

@Brendon RogersI’d get black , in fact I just bought a black GE fridge 448$ for one of my units

How long was the tenant in w/o a fridge? 

The units do not have a washer, dryer, or fridge.