Dirty dishes on the counter, food in the fridge, kitty litter everywhere.

Couches reeking of urine when I sit down - enough to burn my eyes, cat litter tracked through the house on the floors, wood floors discolored around the water/food dishes, and I've even seen on more than one occasion a cat walk into the room and drop a poo right in the floor while we were talking. 

My recommendation would be to find out why cockroaches are attracted to that property:  "Cockroaches have simple needs: food, warmth, moisture and shelter. ...Cockroaches are attracted to food that has been left out on the counter, dirty dishes in the sink, and crumbs laying on the floor.

When acquiring cooker, fridge, washer/dryer, dish washer, AC units, etc.

I had to go so far as to take apart the dishwasher and clean it due to it leaving residue on all of the "clean" dishes.

I had to go so far as to take apart the dishwasher and clean it due to it leaving residue on all of the "clean" dishes.

Things to think about:Transient occupancy taxes, inspection fees, business licensing fee, etcUtility costs, which will be much higher than average bc people use your property like a hotelLaundry costsConsumables (tp, paper towels, shampoo, soap, dish detergent, sponges, cleaning supplies, etc)

I like your idea, however, just a bit of the devil in the details.Best, TerrellTerrell,  I do provide all the appliances aka Washer, dryer, garbage disposal, dish washer, refrigerator, and stove.In the higher end 2 units i have the appliances are brand new (Got a great deal on them from home depot) and the tenant is responsible to deal with Home depot when it's under warranty.

Sinks are kept dry and free of dirty dishes.

The soap dish fell off in Bathroom #2.