https://api.bridgedataoutput.com/api/v2/OData/mlspin/Properties?$filter=(City eq 'Boston') and (PropertyType has PropertyEnums.PropertyType'Residential') and PhotosCount gt 1&$top=10&$select=ListingKey,ListingContractDate,BedroomsTotal,StreetName,OnMarketDate,PropertyType,ModificationTimestamp,ListAgent,PhotosCount&$expand=ListAgent
The $expand system query option specifies the related resources to be included in line with retrieved resources. Look for the NavigationProperty in the metadata to determine if a resource is linked for expansion.