According to what Massachusetts Attorney General Maura Healey said on Boston Public Radio, the fastest growing form of identity theft is stealing tax refunds.
Boston Landlords Startled to See 8 to 11% Tax Increases. As reported by the Boston Globe, Boston's commissioner of assessing increased property values for two-families by 17%, and for three-families by 20%.
An in-depth case study of dual real estate tax rates, for Worcester, MA, fiscal year 2015. The discussion may be helpful to other municipalities, as well.
An introduction to how to depreciate rental property, with some specific advice and a link to a worksheet that will help you do it without an accountant.