Change the math in a way that most consumers won't comprehend, won't care of because consumers are so instant gratification. 

This is especially important in a society that increasingly demands instant gratification ("Why can't I get a phone app to do everything related to the investment with just one click"?)

On a long questionnaire the best number to reach is also asked.3) reminding them of why they called is extremely important in today’s world of instant gratification.

Remember, you have to dummy everything down for people because people want instant gratification.

Those of us who expect a return of $400 per hour on any RE site will be a little hard to justify, IMO and if that's the case, some will be broke with that assessment.Too often, especially from the younger generations, tend to expect instant gratification for their efforts.

Landlords that are blatantly violating the law (slumlords, sexual harassment, violence, etc.). 

It might be a delayed gratification tool but it still pays you well today by giving you tax breaks and even better if your company is matching your contributions.

This is the DE wording in 4603(b)(3), the Delaware Fair Housing Act: (3) To make, print or publish, or cause to be made, printed or published any notice, statement or advertisement, with respect to the sale or rental of a dwelling that indicates any preference, limitation or discrimination based on race, color, national origin, religion, creed, sex, marital status, familial status, source of income, age, sexual orientation, gender identity or disability, or an intention to make any such preference, limitation or discrimination.

The only ones you read about in the paper are (a) Landlords that blatantly violate the law, or (b) Landlords physically assaulting or sexually harassing their Tenants.The best protection: know and obey the laws, treat your tenants honestly and fairly, and document everything.

@Adam Zach people that went to college or invested in an education better understand how investments can pay off and have had to endure delayed gratification.