The exemption from federal estate taxes has gradually increased over the years while the estate tax rate has gradually decreased. Here you will find a chart that shows the increases in the exemption and decreases in the tax rate from 1997 through 2015.
Edith Windsor sued the United States Government after being denied federal estate tax exemption as a surviving spouse - an exemption that cost her over $363k in federal taxes. June 26, 2013, the U.S. Supreme Court ruled that section three of the "Defense of Marriage Act" (DOMA) is unconstitutional and that the federal government cannot discriminate against married lesbian and gay couples for the purposes of determining federal benefits and protections. -source aclu.org
Florida's Homestead Exemption can save Florida residents money on real estate taxes. Find out key information on the Homestead Exemption here http://www.michaelsaunders.com/blog/tably/florida-property-taxes-your-guide-to-filing-homestead-exemption/ and see if you can save on your taxes.