Born and raised in the community, he left for college in upstate New York, later returning to Staten Island to work in his family’s architecture firm in neighboring Richmondtown. Mr. Morace and his wife, Allison, spent a year sifting through the sparse housing inventory before they found a way back onto Lighthouse Hill. Last year, they paid $650,000 for a 1952 raised ranch house with two bedrooms on Lighthouse Avenue.