there is a company that makes extra large sticky notes printed with your info like a postcard mailer that you can peel and stick on front door too

Postcards, zip letters.

COIs - Centers of Influence - I like Financial Planners to network withPaid MarketingAccount Closed are all pros at paid direct response marketing (post cards, yellow letters, zip letters, etc)

I am going to use vistaprint for the postcards, but this is where my question lands.

Just make sure you test track everything I use postcards in Denver yellow letters in Little Rock it really just depends on the market

Account Closed   I am starting with hand written letters to try and get the phone ringing and will transition  into mailing services of letters and postcards as I get busy and put systems in place.

2) How can a homeowner recognize common brand between postcards and yellow letters? 

You can mail postcards or a Yellow Letter.  

So I did some investigative work and found the post card!  

Where I put word for word exactly what the postcard(s) say minus the Realtors phone number of course.