Complex sentence: He inherited property from his family in the town of Tipperary and for most of his life this provided a reasonably comfortable income, so that he did not have to earn money and was able to assist fellow separatists financially.
Split into simpler sentences: He inherited property from his family in the town of Tipperary. For most of his life, this provided a reasonably comfortable income, so that he did not have to earn money and was able to assist fellow separatists financially.