Yellow Letter Response Rate

[Ty Primers]

I got a list of about 1700 or so properties in my area that are code violations, mainly failure to register vacant property. While I’m looking up the owners to begin my direct mail campaign I’m wondering what is the average response rate for yellow letters? And how can I maximize it and the conversion rate to close as many deals as Possible from this list. Im looking to get my first deal from this list and I am only working with a couple hundred bucks for marketing so I was thinking OF breaking the list up and mail about 100-200 per week until the list is tapped out.