Also, for the yellow letters that you guys use, is it printing paper material or legal pad material?

If a yellow pad of paper is easiest, an excel document, HighRise, or PropertyBase, at the end of the day it doesn't matter as long as you can stay on top of your leads.

I'm walking around every day with a note pad taken down the addresses I think would be a good fit.

@Wayne Tam  Her are a few ideas for saving money.Use your ink jet printer but buy an ink refill kit, you will refill a cartridge for $2-4, some printers will recognize if you put the same cartridge back in right away so keep 2 or 3 and rotate them through.Instead of using the legal pad paper buy some plain yellow photo paper, write your letter on white paper WITH LINES, then copy that in color mode over to your yellow paper, with a little running you should be able to get the lines to print too.Someone here on BP advise that there is an app that will turn your personal handwriting into a font for your computer, I have not tried that yet but it has to beat hand addressing 100's  of envelopes so I will try it soon.  

When printed on a yellow legal pad with the right print settings its nearly impossible to distinguish yellow letters printed on a computer vs hand written letters.

Dang it...I had touch pads!

And what your targeting is 80% chance other investors are targeting as well. so when you get the letter that is obviously a semi phony yellow legal pad letter saying about the same message just the names are changed does not take a seller long to realize these are just form letters.

Sub 30k pigs are not going to buy Pixel works for a song or corner I tunes or the I phone or I pad or any of the other I products..

I have a 22 pad MHP under contract and am doing my DD. 

In my experience, the seller that NEEDs to sell would sell to Mickey Mouse if he brought them a check.