I’ll tell you the truth, I’m sure your logo man works hard at these, but they are a far cry from looking professional, no offense, just a disinterested third party’s opinion on logos.
I think they’re intentionally designed to be bland (borderline watermark-ish) so as not to compete with the text on your website or your own inspection company logo: http://marketing.nachi.org/logos/
That is a good question. I have only been able to locate dates that building permits were issued. Any advise on find the address of new homes would be a great help.