First, you need to figure out whether we are actually talking about trademark use (the words being used as a source identifier like "I'm Lovin It"...

Regards to jewelry that look the same, you need to understand whether that is copyright infringement or not. It certainly could be and the test is...

This is ridiculous. Copyright is irrelevant if you are specifically commenting on the letter. For example, you post on YELP, I received a letter...

How to handle DMCA takedown requests as a Transitory Digital Network Communications provider?

I think you have little exposure, but you would still be required to respond to DMCA requests and because there is no way for you to do so, that...

Such an agreement would very likely not be enforceable across all IP created by you while on your own time using your own resources, equipment,...

No, because the NFL did not endorse of sponsor your items only the charms. The charms are purchased for your personal use, not to be used to brand...

Can I file a trademark of an already trademarked name (or similar) if the product is different?

This is your second bite of the apple here. You need to have a proper clearance done. You don't have a problem if the mark is "Over the Moon"...

Can I LLC my fansite nflfemale legally?

I think I would refrain from using the NFL trademark within your brand. You are free to refer to the NFL when you in fact discuss them, you just...

Yes. I would, however, refrain from using multiple quotes from one source. Using quotes will generally be permitted. This is largely because...

I want to market black hair products and have a podcast?

The poem and / or book title is not relevant regards to a trademark conflict. Before, however, you invest in any trademark make sure you get...