On top of that, I have professional cleaners in the property every 2-5 days on average.

If you call a duct cleaner for an assessment, for sure they will need to be cleaned!

I'm specifically asking about cleaners and maintenance people.

I personally think it is easier and cleaner to pay as the project progresses.

Its not a huge kitchen but the white makes it more photogenic and bright, it also has a much cleaner look. 

A cleaner, handyman and tradesman (plumber, electrician, HVAC).

Just make sure you include in the lease the kind of cleaners that can be used.Jacuzzi tub- nope, not in a rental. 

Finding a good cleaner is the biggest, hardest, most important piece to all this IMO. 

I was trying to be PC when posting above about lack of controls and refrained from naming the country of manufacture.Frank Germaine Can you remove the spotting and residue with a cleaner like Windex or even pure ammonia?

Gives a cleaner look that a lot of people really go for.