Not just address, last sale date and estimated value, but also cell numbers and email addresses.

I use that phone number to call them back, and I work directly from the cell # when I work with buyers.

Ryan,You need to be a real business with a business address, business phone (No cell), business license, tax number, business bank account, $500 inspection fee, $500 application fee.

I actually have a contact in my phone as "retarded lady that doesn't like my letters" as she really felt my postcards were taking up too much room in her mailbox...So after 3 calls I finally noted her phone # in my cell as "Retarded lady..."

Have google voice call your cell phone.  

was getting one of those every hour.. so they are doing a good job  they figure out who pays cash then they skip trace and somehow end up with my cell number.. 

If you are using google voice, or even your own cell phone I would make a not-so-bold prediction here and say you probably aren't having the current level of success you aspire to.

I am not giving away my primary cell number and I still receive many spam calls and even some targeted calls that were probably populated from some leaked database.

Exception are NODs/TS/ProbatesAppend the owners cell number and send a RVMAdd the list of properties to my Facebook campaign and send ads to them via Facebook.

What I'm thinking is when i use mail merge, if there's a cell in excel with the google street view picture i can use that to inbed it at the bottom of the letter.