https://api-prod.corelogic.com/trestle/odata/Member?$filter=(MemberFirstName eq 'James' or toupper(MemberFirstName) eq 'ADAM') and (OriginatingSystemName eq 'SEFMIAMI' and OriginatingSystemSubName eq 'SEFMIAMI_MIAMI')&$top=20
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 ‘MAIN’).