Determining trademark priority with conflicting dates of use, use in commerce, and filing?

As noted, in these cases what matters most is who started using the term first and where. Because we can't address these issues in the hypothetical...

Do i have grounds for a law suit ?? or maybe royalty fees?

We simply cannot answer this here without more information. When you say they are using your picture, you mean that you are depicted within it or...

An indemnification would be quite common and normal especially as it pertains to third party claims. For example, someone at your wedding sues the...

HHow do I sell my slogans to companies?

What you are really asking is "how do I sell marketing services to other companies?" You can't really coin phrases and sell them as trademarks...

Yes, of course, but you can present any false association with a given trademark owner. So you are free to say, for example, "our cases fit all...

Can I sue if some one is using my last name as their web site?

Someone with the last name ZEFRON who has a domain ZEFRON.com has a perfectly valid use for the URL. That is, there is no bad faith use here you...

That alone would not be problematic nor considered a derivative work, etc. It is fine to simply reference pop culture or another work in your own....

Would it be legal to remake an online game that has been inactive/offline for the past 4 years?

As noted, even if they abandoned all trademark rights to the game for non-use over an extended period, they still have copyright interests in their...

Do I need permission to display life size comic book characters in my store for patrons to take a picture with for promotion ?

It's one thing to simply adorn your store with decorations. That alone will not usually be enough to create a false association or sponsorship with...

Please tell me indicative budget for such a process and what we can demand from that thief.

As noted, at this point I suggest that you consult with a lawyer in private and discuss your best course of action in more detail. You can start by...