Funding sources for law school fall into a few broad categories:
Institutional Scholarships and Grants: These are generally merit-based, don't have to be repaid, and are most often awarded by individual institutions based on your LSAT scores and undergraduate GPA. As institutional aid coffers are limited, you should apply for financial aid through the financial aid office of each school before its priority deadline, which may be long before you hear about your admission status. Carefully check the terms of any awards you are given to see if they are conditional (requiring a minimum law school GPA, for example).
Because these awards are based on your undergraduate GPA and test scores, you are more likely to receive them if you are nearer the top of that law school's entering class. Going to the most highly ranked school you can get into even if you are nearer the bottom of their class lessens the chance of your being given these awards, thereby increasing your ultimate level of indebtedness. That, in turn, restricts the areas of law you will financially be able to pursue because you will need to earn more to pay off your loans. In short, you may find it better to be a "big fish in a small pond" (i.e., at a more regional school where your credentials are more competitive) both when it comes to applying to law schools and when choosing between offers.
Other Scholarships and Grants: To broaden your scholarship search, go to AccessLex, a nonprofit organization that "supports you on your law school journey." It offers a searchable scholarship databank of vetted opportunities not tied to specific institutions.
Federal Loans: If you would like any financial loan assistance with law school, start with federal loans, which are need-based and include Federal Direct Unsubsidized Loans and Federal Direct PLUS Loans. Apply for these by completing your FAFSA.
Private Loans: These are offered by lending institutions with varying terms at higher interest rates than federal loans. These can fill the gap not covered by your federal award, but should be limited to the lowest amount possible.
Employment: In some rare instances, a current employer will cover part or all of your tuition if the degree would enhance your credentials with that organization following graduation and if you agree to work for them for a specified number of years. Not to follow their specific terms often renders you responsible for repaying them in full.
Wages: Some full-time law students work limited hours to help defray living expenses; however, 1L (first year) students are generally strongly discouraged or forbidden from doing so as it can negatively impact your success in law school.
Read This: The Law School Admission Council offers a free PDF resource, "Paying for Law School: A Preliminary Guide," outlining these and additional types of financial aid options. It also outlines steps to taking when applying for aid, planning for expenses, loan repayment, and more. You should read it from cover to cover.