I just use the flyer provided by SFI at this link: https://www.sfimg.com/Resources/ECAFlyers
It explains the program perfectly and is very professional looking. Of course if you want to send a letter instead of this flyer I think it makes it much more personal if you come up with your own letter to mail out just be sure to put it on the SFI letter head. People can when you write a sales letter yourself because it's more personal and expresses your feelings of how much you want their business.
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