Complex sentence: Realising that he might be re-arrested at any moment he spent the time arranging his financial and personal affairs he issued a series of deeds to make provision for his mother, his wife and family and to avoid confiscation of his property by the Crown.
Split into simpler sentences: Realising that he might be re-arrested at any moment, he spent time arranging his financial and personal affairs. He issued a series of deeds to make provision for his mother, his wife and family and to avoid confiscation of his property by the Crown.