You will narrow your market a little bit but plenty of younger guys, working professionals, etc don't cook much anyway....

Add in the possibility to purchase a property that needs some extra work that you can do yourself, and then you're really cooking.

It's often referred to as accessory living space (without cooking facilities) or an accessory dwelling unit (if it has a full kitchen).Unfortunately, there are a lot of contractors that will just take your money and build it without permits, leaving you with an unpermitted and illegal addition that you might have to remove later on. 

Looking at banks, fast food.

They put in a small kitchenette combined with laundry units that seems to be some type of food-prep area. 

buyer had an agent and an Attorney  seller ( me ) has and agent and my attorney.. it leads to some really disjointed confusing escrows to many cooks in the kitchen.in title company escrow company states your SEnior escrow officer is your attorney and they handle both buyer and seller.

Food, cleaning supplies, home expenses, etc.- See about contract nursing for in home care.

Let's look at it this way, say your a Veterinarian by profession and instead of a rental business you purchased a restaurant, would you be the "Chef" and cook everything?

I know it sucks to do that, but in Cook County it's fairly common.

We have many tenants who are super friendly, make special food for my Filipina wife and give her small gifts like perfumes, but we never give our tenants gifts, never give rent discounts and we never treat them differently when their rent is late, or when we have any other type problem with the friendly tenants.