Retired attorney Herb Siegel may live in Florida for part of the year but his heart is still in Buffalo. That’s why he and his family continue to support the city, most recently with a $300,000 gift for an endowment for commemorative space on the western edge of Hoyt Lake in Delaware Park. The Siegel Landing was unveiled during a ceremony last week. For Siegel, who served on the Olmsted Park Conservancy board of directors for eight years, and his son Aaron, a current board member, the endowment…