Sent out yellow letters and got my first response. 

@Gilbert GomezI think right now every property with a accurate owner address with or without equity is getting bounded with postcards and yellow letters.  

I received a response to a yellow letter and the seller is agreeing to seller finance the property for 18k with 5k down 5% interest with a balloon in 3 years. 

The best way to score deals in a hot market is to market directly to sellers via yellow letters, postcards etc

I've been driving for dollars and mailing out hand written yellow letters.  

(like a yellow letter) do you have a better response rate? 

The few that I can remember are to (drive for dollars - look through streets you would consider that have been neglected, tell friends/family you are looking for property, send out yellow letters, go to your courthouse and see whats up for auction, tell your realtor you're looking for off market properties, find a wholesaler, etc.).  

I was thinking I would use a more professional letterhead than my yellow letters, use one of my company names, and pitch myself as a loan buyer who can pay all cash fast and can take over the burden of negotiating with borrower and/or foreclosing, etc.  

Do you put this form with a yellow letter or do you give this to the seller when they make contact with you?  

The amount of shift has to do with the LEDs used to produce the white light. eg. the more red of yellow present, the more noticeable the shift in colour.