I don't know too much about your situation, so I will just give you my opinion.
What is the best way to tell them that i really want to go there, but that i need money to do so?
I think that by just visiting the school and following up, you will let USF know that you are interested in attending. While you are there, will you be taking a supervised tour? Will you be seating in a class? If not, try to schedule a tour, and a course to sit in. Doing both of those will show the school that you are genuinely interested in the campus.
Also, I will be visiting the campus next week. Should i start off with an email asking for additional funds or should i just schedule an appointment with the admissions office without telling them that i want to discuss money?
I am not sure who you would need to meet with. I think you would need to speak with the scholarships/financial aid office, not the admissions office. If you are not sure, call the school and ask whom you would need to set up an appointment with. I do not recommend sending an email. Just have a meeting with whomever can offer you more money and ask him/her is you can get any more aid. Make sure to bring your offers from all of your schools, even the ones you may not be considering. 1/2 tuition scholarship at Howard will not have much hold (since Howard is a tier 3 school and USF is tier 2), but since Loyola Chicago is ranked higher than USF, a scholarship for 3/4 tuition should get you some money. Even Santa Clara is higher ranked than San Fran, so that should give you some pull. Just make sure that you emphasize your interest in USF, but that you NEED
scholarship money. Donít throw USFís lower ranking in the advisorís face; just make sure to mention that you have been accepted to two higher ranked law schools, both of which are offering you some money. Yes, I know you are merely a finalist for the Loyola scholarship, but the money at Santa Clara is nothing to laugh at. Make sure to ask the advisor is there are any scholarships you can apply for, or if there is any other aid USF can offer you. Make an effort, but donít beg. If s/he says there is no more money, follow up (via phone) a week or so later to ask again. After all, someone could turn down USF and a full tuition scholarship that went with his/her admission.
Also any thoughts on USF v. Santa Clara v. Loyola Chicago
I don't know much about these schools. I know that Loyola Chicago was ranked number 69 last year, while Santa Clara was ranked 91, with USF being ranked at number 97. If you go to http://www.princetonreview.com/law/
you can search for the school and find stats such as employment rate, bar pass rate, average salary, etc. Maybe that will give you some help in deciding what school is best for you.