Complex sentence: Hoffman involved his friend Edgar Rosenberg, then a public relations consultant, who in turn through his connections convinced the business services corporation Xerox, then led by Joseph C. Wilson, to donate $4 million towards the project despite some shareholder opposition.
Split into simpler sentences: Hoffman involved his friend Edgar Rosenberg, then a public relations consultant. The business services corporation Xerox, then led by Joseph C. Wilson, was persuaded to donate $4 million towards the project despite some shareholder opposition.