Tenants are slobs who care for things like they belong to someone else (and not to themselves personally)...Im always getting calls about stove burners, and 100% of the time its because they spilled somethig on it, then it calcified because they aren't capable of cleaning...so as my current round of stoves wears out...I'm pitching them and then the tenant can supply their own fridge and stove.

This is not near the sink or a window but is next to the stove -- so in theory it could have been caused by cooking spills although I don't think that's what's causing it since there is no evidence of it immediately under the stove.

Appliances: Stove, Refrigerator and Dishwasher. 

My contract with the seller states that he is going to replace the refrigerator, stove and paint the walls in that unit. 

Not sure about the rule or what not.However, a kitchen sink with cabinet and a portable stove will work for most people.

You can usually get 3-4 used stoves/fridges/dishwashers for the same price as you can get one new one.

Refrigerator was left full of rotten food and had to be thrown out along with the broken stove. 

if there are crumbs of food and grease around the stove then you have a cleaning problem.Document the tenants sanitation practices with pics and video.

The company covers anything from a leaking pipe, refrigerators, stoves, build in microwave to pools.

This fee would include, at no additional cost, 24/7 emergency call-out by tenants or landlord to address issues that arise, such as a furnace going out, a leaky faucet, a burst pipe, a stove not working, etc...?