Kenneth D. Campbell created and edited an influential investment newsletter for twenty years; co-wrote The Real Estate Trusts: Americas Newest Billionaires, first full-length book ...ver maisKenneth D. Campbell created and edited an influential investment newsletter for twenty years; co-wrote The Real Estate Trusts: Americas Newest Billionaires, first full-length book on REITs; and co-founded a global firm managing $22 billion in assets. Now eighty-six, Campbell lives with Irene, his wife of sixty-four years, outside Philadelphia.ver menos