Imam Khalid Nasr, head of the Islamic Center of New England, has been working overtime as a spiritual leader of both the Sharon mosque and the center’s other mosque in Quincy. Officially the imam of both mosques since the imam of the center’s Sharon mosque was arrested on immigration charges last year, Nasr, an Egyptian native, has been conducting services in both places and delegating duties to trained lay persons in cases of conflicting schedules. In his time in charge of the Islamic centers, Nasr has made outreach to Christians and non-Muslims a trademark of his service, meeting regularly with heads of area Christian congregations and welcoming school groups to tour the Quincy mosque. “We are not strangers anymore. This is our home. Our intention is to stay here and be part of this community, he said.