Okay my husband and i are both getting into speedrunning. we also want to stream it. We are under Thedorkgaming on Twich and we also wanna post times on here. BUT, the problem we are having is that the Twich can only be linked to one account. Can we have one Speedrun.com account and share it or is this against TOS? If it is whats the best way around it.

You should both be able to post times under different accounts while providing a video link to the shared Twitch channel.  And if by linking the Twitch account you mean attaching it to both of your profiles, I'm not sure if you can do that.  But sharing a Twitch account won't be an issue for submitting times, it's just a video link.

1) You can both have seperate accounts or just one account for both of you to use. Your choice. But some games can be played by 2 players where you write both of the usernames.

Note: I recommend you get seperate accounts. One for your husband's speedruns and one for your speedruns. Write both of your usernames of you ran 2-player game together.

2) Welcome to Speedrunning!

Here, check this out:
http://www.speedrun.com/The_Site/thread/z9fqe