Sounds like sloppy development to me... the -99999 and overflow:hidden looks concerning because throwing text off the screen is a common practice by spammers.

While I'm not a developer, I don't think any of my sites' logo has ever been coded as a H1. The H1's are always within the body tag. The logo should just be an image.

I would recommend comparing your source code to other websites, any website. It doesn't need to be the Genesis theme to be comparable. You just need to see how other sites are structuring their HTML.

Does that help?

Kevin Phelps
http://www.linkedin.com/in/kevinwphelps