a 2 prong outlet is a flag that there could/probably is electrical that needs updated. 200amp service with breakers if you are trying to keep things simple (if you have natural gas powered hvac and stove you could get by with less) Knob and tube electric would be a cost to upgrade5.

Freshly painted, with AC in all rooms and nice refridgerator, decent cabinets and stove.

The handy man doing the rehab - he manages 28 units in Glendale - says I should be able to get an extra $100.00 per month in rent if I have a stainless steel stove, hood, and dishwasher installed instead of white.There might be some deal breakers for super high quality tenants already, like this being an apt conversion, with coin laundry machines located in the common area.

In our area we provide fridge and stoves in rentals.

Plumbing I mentioned and would be a decent part of the cost I wouldn't even worry about gas for a studio and make it all electric (electric HWT, Stove, radiant heat if you can) Duct work - I didn't think about this because mine have electric floor heaters already.

I repaired the kitchen and upgraded the gas stove and out backsplash, I had the roof replaced and the landscape redid the front and back, remolding the master bathroom and guest bathroom.

Same idea with kitchen appliances (it has a stove, fridge, dishwasher, microwave Black appliances) Do I swap them out and keep them for a rental property and put new SS appliances in? 

Do you provide appliances like stove, hood w/microwave, W/D, dishwasher or do you only provide some items?

Electrical outlets can be GFI in any room, should be anyway, a 220 V run for a stove is a separate run. 

I need to replace a refrigerator and free standing stove/range in a SFH that I recently purchased.