MIAMI — A North Miami-Dade home where a man was shot dead and three others were wounded on Easter Sunday night is owned by a religious organization whose colorful and controversial president also founded the group, “Blacks for Trump.” Maurice Symonette — a sign-waving fixture often seen behind former president Donald Trump during televised campaign rallies and a former member of notorious Miami cult — has been inviting young people to a 5-acre property dubbed the “Boss Mansion” for more than two decades for monthly parties he told the Miami Herald are intended to promote racial harmony. Neighb…