And, to be honest, some of it looks too good to be true. my question is: are the numbers they’re displaying on their spreadsheets realistic?

The hero section is what's going to be displayed above the fold, which is everything in plain view without scrolling.

As a Property Manager our Facebook Page is also used to display our properties of course.

PPC campaigns beat display campaigns any day of the week for motivated sellers, or anything else that's not a branding campaign or very generic product, IMO.But it'll be interesting to see how this goes.

What is to be displayed on the check books and name of the bank account?

I recently began working for a mortgage company, and the compliance department is requiring that the company name be prominently displayed.

Oh, and you cannot forget the wonderful art (AKA graffiti) displayed upon nearly every building, street sign, and telephone pole. :-)

Therefore, displaying a photorealistic render of what the house is going to look like gives you a head start on selling or renting it to homeowners."

But Zillow displays a totally different phone number on the syndicated listing sites. 

Box as the return address offers privacy and can protect your physical address from being openly displayed.