To answer your question, the skills set that help me the most is:Learning to work in harmony with others and creating win/win arrangements. 

Harmony is where happiness is at.

Usually there are peaceful coexistence clauses in contracts like that where you have to be a good neighbor.  

You can see giving a great tip makes someone's week that doesn't have that much money.Historically wealth transfer gets lost 2 to 3 generations down the line in many situations unless a strong path is placed for how to keep the system going.I have a Harmony meter I follow where 30hrs a week business is the limit then I have myself time and then family.

What about, style, what about drama, what about harmony to the eye and just generating an overall feeling of desiring to be in that space--to want to own it/rent it.An old Pinto was efficent, an old Caddilac was more desirable and less efficent.I'm not trying to sell you on this idea, I'm asking you your thoghts on it as an expert.If we can mix beauty with functioality at a reasonable price, in my book we are "in the zone".Your thoughts?

Instead I focus on harmony.

By offering tenants an option to leave if they are unhappy, we create a more harmonious living environment for everyone involved.

@Harmony Romano that doesnt surpirse me.

Lake Harmony, Arrowhead Lake, Albrightsville. 

In harmony with Greg’s comment, NOI and Capitalization rates are used in evaluating properties of 5 units or more.