Make sure to treat it like a business and your tenants like customers. 

This duplex was initially custom-built for a local heiress, but by the time I ended up with it, it couldn't pass a housing inspection by a blind code official.

It's hard to find any contact information for customer service but once contacted they refused to close my account or give a refund, instead advising me to use the subscription I had already paid for and my account could be closed at the end of the billing cycle.

So why not keep good tenants and show them respect if they are paying and keeping the place clean.Landlords/Management Cos sometimes forget this is more of a customer relations game and not I'm the landlord and do as I say. 

Those are the requirements of a happy customer.

One customer said they were uncomfortable with the neighborhood and didn’t like seeing the other home so close to ours.

The bank does have programs known as CIP, or "Know Your Customer" rules and they are heavily regulated to stop money laundering.

Contracting is a business , the salesman is there to sell a roof to the customer for the most he can get .

We are a custom home builder and can price a new home out much easier than a remodel. 

That usually only applies if you will be bringing customers to your home.