American Family, but Canadian Citizen

I'm looking into finding work in the US, but not sure about some information.
My father has dual citizenship in Canada and the US, and his entire half of the family are all US citizens. Does this help me at all when attempting to get a work permit (assuming a job is offered)?
I have a graphic design diploma but my experience may not be interpreted as being in graphic design.
My fiancee (whom I will be married to when moving) has a degree in Kinesiology and will be looking for work as well. Will we need separate visa's as well? Moreover, although her degree includes physical therapy the title may not suggest this. Will this be a problem especially if she is looking for work that will simply not be named physiotherapy and much more like personal training.
Finally, while down in the US my fiancee is looking to find acting work in film. Will this cause trouble?

Will these issues help or completely deter our efforts? Our stay would most definitely be temporary.

Any advice or suggestions? I'm quite new to working abroad but the company I worked for just suddenly went under so I'm looking into my options.

Does your father live in the US?

If he is your natural father, you can get US citizenship through him, I don't really know much about that one, it requires registration at the embassy. If not you can still get it via an I-130 application but there is a preference category for adult children. Which means you have to wait for your number to come up. http://travel.state.gov/visa/frvi/bulle ... _3953.html

Does your father live in the US?

He does not, actually he has been living in Canada for a long time now but has not actively revoked his citizenship. He's currently looking into it now to see the status of his citizenship.

[quote-"Steven"]If he is your natural father, you can get US citizenship through him, I don't really know much about that one, it requires registration at the embassy. If not you can still get it via an I-130 application but there is a preference category for adult children. Which means you have to wait for your number to come up.[/quote]

That's some great info Steven thanks!

Current processing times for Parental sponsorship of married son/daughter over 21 is about 7 years. For unmarried son/daughter over 21 the wait is about 5 years.

I don't think he could sponsor you if he does not live in the US though.

Here's the instructions for the I-130

Correct, the USC sponsor must permanently reside in the U.S.

You may have automatically acquired U.S. Citizenship at birth, depending on your father's date of birth and U.S. residence. There's a Citizenship chart that we use to determine this. When was he born and when did live in the U.S.?