Is it legal to do a screenshot, screencap, or audio capture of copyrighted material for personal, non-comm., or internal purp.?

It is probably copyright infringement. However, the likelihood of anyone suing you for it is nearly zero. Nonetheless, if you get an e-mail from...

I am wondering if having a 1 or 2 second long sound clip play during a video counts as fair use.

Fair use is only a defense to infringement. You can find out if it is fair use by getting sued: if it is fair use, you win; if it is not you lose.

I want to Trademark my clothing brand. (Sports related goods) called "Second II None Apparel/Second II None Sports Apparel

This would be analogous to trying to register a trademark for "McDonald's Hamburgers" or "Nike Running Shoes." You would be wasting your money on...

It would be trademark and copyright infringement. You could probably get licensed shirts with Snoopy printed on them inexpensively.

Trademark intrusion possible obstical.

You might be able to file an opposition, claiming senior rights in the mark. However, an on-line trademark service could not do this for you. You...

Firstly, it is not fair use. Fair use is a defense to copyright infringement that applies in only certain circumstances. Secondly, since your...

Is it illegal to dismantle and adapt a gaming console? This is for personal use.

The risk here would be minimal. You bought the thing and you can do with it what you want.

This is an interesting question. While an interior design could be considered a work of authorship, it is also quite functional. If the design is...

Is there a way we could make signs with major logos without getting in trouble with copyright/trademark laws?

These logos are valuable intellectual property to the trademark holders and you can expect that they will enforce their rights aggressively.

Stealing pictures

There are privacy issues involved here. Privacy is an issue of state law and, therefore, you should consult with a Florida attorney. Also, this...