How to make an offer to wholesaler

[John Vo]

Hi everyone! I'm a new investor to the Houston, TX area. I've been analyzing some of the deals that I get via wholesalers that I've met at real estate investor events. I usually do my due diligence by doing several comps through zillow, the local MLS database, and property tax records. Then I would add up what I my rehab cost, finance cost, etc would be and come to a purchase price. The purchase price that I arrived at is almost all the time lower than what's advertise on most of the wholesale deals I've seen. So my questions is, how do you make an offer to the wholesalers without offending them? (PS. Most of the purchase price that I came to after adding my acquisition cost is about 15-20% discount from what I've seen being advertised)