Adding a section to the Maryland Constitution to provide that the maximum amount of an ad valorem tax on real property may not exceed the rate in effect on November 2, 2010, applied to the full cash value of the property; requiring all real property to be assessed at the 2010 full cash value; requiring approval of two-thirds of the members elected to each House of the General Assembly to pass legislation to increase the rate of an existing tax or to impose a tax on an individual or entity not previously subject to the tax; etc.