NEW YORK CITY — Barone Management has purchased the former Angel Guardian Home in the Dyker Heights neighborhood of Brooklyn for $37.5 million. The seller was undisclosed. The New York-based development company plans to redevelop the site into a 300,000-square-foot mixed-use project. Sixty percent of the property will be devoted to approximately 150 market-rate condos, with an additional 15 percent reserved for affordable housing. The remaining 25 percent will be split between seniors housing and an educational use. Construction is expected to begin in 2019.