I want to start a yellow letter campaign and would like to plan for one carefully as my finances aren't in the best shape.

Keep your head about you.In the end, write him a letter of your findings. 

If you are a Colleague with anyone that has NOT posted in the thread, and you want them to see your post, hold down the shift key, type the @ and the first 4 letters of their First or Last Name.

Two months later I am still not getting many big leads but I continue my plan by continuing to send letters.

"This letter amends and revises our previous reference for tenant X and should be considered supplemental information"

These will have higher interest rates, shorter terms, and may be ARMs or have balloons.  

Is there a template for an introductory letter to send to cash buyers in my area

@AL Turner What you do is starts mailing out yellow letters  to absentee owners who have at least 80% equity.Wholesale pre foreclosures  

I did get a phone number from him that is still working though.I have sent a certified letter requesting payment, is there anything else I should do at this point if he doesn't pay up other than wait?  

I can tell you I would never accept our contingencies from another buyer which include: - Due diligence starts at receipt of bank approval letter- Earnest money due within 7-10 days of receipt of bank approval letter- EM held by our attorney who also must close the transaction (difficult when another attorney is handling the short negotiations but there are ways to structure it where they still get paid and our attorney closes it)- Property is vacant at least 24 hours prior to closingThese contingencies help protect our earnest money in the event values during the time it takes to get approval.