A boolean ‘Not’ must enclose its operands in a parenthesis with not as an operator i.e. not(City eq ‘Elkwood’).
https://sparkapi.com/Reso/OData/Property?$filter=not(BedroomsTotal le 3) and (PropertyType eq 'Residential')&$select=ListingKey,BedroomsTotal,Directions,ListingContractDate,ModificationTimestamp,StandardStatus,PropertyType,City,StreetName,StreetNumber,BedroomsTotal&$top=10
Filter a query by matching strings. Note that string comparisons are case sensitive. There are also string functions to aid with string filters but will vary depending on MLS Provider (i.e. toupper(StreetName) eq...
https://sparkapi.com/Reso/OData/Member?$filter=MemberFirstName eq 'James'&$top=20
