Federal grant programs are driven by the congressional funding that fills the coffers. As a result, maximum grant awards and general availability change every year. Currently, annual Pell Grant award maximums hover around $5000 per student. Some government grants, like FSEOG are distributed on a first-come first-served rotation that continues until funding is exhausted, so time is of the essence. To maximize your access to federal grant dollars, it is essential that you file your FAFSA as early as possible.
There is a good chance that say the equity in your home and/or some other components of your net worth and income will be held against you in the calculation of your SAR (summary of the financial aid you can expect to receive) of your FAFSA. This does not mean, however, that there are not ways to reduce the financial burdens of the college education expenses.