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I have recently seen a few competitors using rel=author to markup their homepage. I don't want to follow suit if it is outside of Google's search quality guidelines. But I've seen very little on this topic, so any advice would be helpful. Thanks!

Would you ever wrap a Logo in an H1 tag? The logo is an image, but is in an area that would cause it to make the most sense when forming my page into a proper hierarchy format. Thanks in advance for any help!

I recently acquired a domain and the previous owners practiced some very shady link practices. The current backlink profile is flooded with link spam with foreign anchor text, amongst links from spam directories. What are some good practices to help clean up the backlink profile of this domain so it will not hurt me in the long run?

I have been getting errors for too many on-page links. All the major navigation pages are found in links within the navigation tabs and are identical to the footer links. So my question is, would nofollowing the footer look unnatural and throw off the balance between followed and nofollowed links on the site and negatively effect SEO?

Recently after checking my backlink profile, my site has attracted quite a few spam backlinks with the anchor text written in Asian characters. We don't do any black-hat tactics and have remained clean in our process, as well as not submitted our site to any spam directories, yet we still have these foreign links. Any thoughts on how to get rid of these or stop these from occurring?