Marketing - Direct mail

[Jacob Joseph]

Hi, my name is Jacob 

My question is:

As a beginner to Direct mail, what would you recommend for me when first starting out, What pitfalls should I avoid that most beginners endure, and how should I design my message to the prospect to get the most consistent responses? any help would be greatly appreciated.

Quick backstory on myself and my real estate experience: 

I am a Wholesaler/Investor in the Metro - Detroit area and I am about to start Direct mail for the first time. I have been in Business for 2 years and I am doing wholesaling 1 deal a month consistently I have an American Cold caller who calls 20 hours a week for me and I call myself for about 10-15 hours a week. I have enough money saved for marketing that it's time to take on another marketing channel. 

thank you!