Early Graduation and Admissions Chances

I am looking to graduate high school a semester early. I have all the credits I need to graduate during my first semester of senior year and my school offers very few APs and I am in the International Baccalaureate program right now. I am in one of the worst school districts in the country and I am not learning what I should because our teachers are horrible. There is basically no point in me staying another semester. I would like to go to Stanford as a freshman in fall of 2018 and am applying early action. I would be a legacy at Stanford, I got a 30 on my ACT (I know it’s not perfect) and have all A’s and B’s except for 3 C’s freshman and sophomore year. I do mock trial, speech & debate and a European study tour during the summer. I would like to take classes at my local 4-year university (University of Nevada, Reno) during what would be my second semester of senior year. I am applying to Stanford, Duke, University of Wisconsin, Yale, University of North Carolina, University of Michigan, Yale, Columbia and Vanderbilt. Would I need to apply as a transfer student? Would doing so affect my chances of getting in to these schools? If so, should I just work during that semester (and NOT take classes at the local university) and then apply still as a freshman applicant to all of the above schools? Would I be seen by those colleges as lazy for not taking college classes yet? OR should I just take 1 or 2 classes at my high school during second semester and then dual enroll at UNR (a four year university) and if i did that could I still apply to all of those colleges as a freshman?

Can you do dual enrollment and take some classes at a CC? I don’t see the advantage of graduating high school one semester early even if it is possible.