public static void populateLastestEnrollment(List<Case> pCase){
    Id EnrollmentRecordType = Schema.Sobjecttype.Case.getRecordTypeInfosByName().get('Enrollment').getRecordTypeId();
    Id DiscontinuedmentRecordType = Schema.Sobjecttype.Case.getRecordTypeInfosByName().get('Unenroll From GPS').getRecordTypeId();
    Id AdultPatient = Schema.SObjectType.Account.getRecordTypeInfosByName().get('Adult Patient').getRecordTypeId();
    Id MinorPatient = Schema.SObjectType.Account.getRecordTypeInfosByName().get('Minor Patient').getRecordTypeId();
    Id RECORDTYPEID_RELATIONSHIP_INDIVIDUAL = Schema.SObjectType.Relationship__c.getRecordTypeInfosByName().get('Individual Relationship').getRecordTypeId();

    List<Account> updatedAccountList = new List<Account>();
    Set<Id> caseAccountId = new Set<Id>();

    //Get the parent Account of the case
    for(Case cs : pCase){
        caseAccountId.add(cs.AccountId);
    }

    List<Account> caseAccountList = [SELECT Id, Latest_Enrollment_Unenrollment_Case__c, Consent_Provided__c,Consent_Version__c, Consent_Provided_Date__c,
                                     Enrollment_Status_Text__c, Enrollment_Form_Received_Date__c, RecordTypeId, X18th_Birthdate__c, PersonMobilePhone, PersonHomePhone,
                                     (SELECT Id, GPS_Enrollment_Status_Detail__c, Date_Consent_Provided__c, GPS_Enrollment_Status__c, Enrollment_Type__c,
                                      Enrollment_Form_Received_Date__c, Consent_Version__c, CaseNumber, Consent_Provided__c, Consent_Provided_By__c,
                                      CreatedDate, Status, RecordTypeId, Case_Sub_Status__c FROM Cases ORDER BY CreatedDate ASC)
                                     FROM Account WHERE Id IN: caseAccountId];

    //loop through all child records
    for(Account a : caseAccountList){
        //Checks if case object has records
        if(a.Cases.size() > 0){
            // find out which one is the most recent relevant case for a given patient account
            for(Case c : a.Cases){
                if(c.CreatedDate >= mostRecentCase.CreatedDate || mostRecentCase.Id == null){
                    if(c.RecordTypeId == EnrollmentRecordType ||
                       (c.RecordTypeId == DiscontinuedmentRecordType
                        && c.Status == 'Closed'
                        && c.Case_Sub_Status__c == 'Completed')){
                            mostRecentCase = c;
                        }
                }
            }
        }

        // If there is no relevant case available, then make the auto populated fields null:
        if(mostRecentCase.Id == null){
            a.Latest_Enrollment_Unenrollment_Case__c = null;
            a.Consent_Provided_Date__c = null;
            a.Consent_Expiration_Date__c = null;
            a.Consent_Provided__c = null;
            a.Consent_Version__c = null;
            a.Enrollment_Form_Received_Date__c = null;
            a.Enrollment_Status_Text__c = 'Never Enrolled';
        } else if(mostRecentCase.RecordTypeId == EnrollmentRecordType &&
                  (mostRecentCase.Enrollment_Type__c != 'New Consent' || mostRecentCase.Date_Consent_Provided__c != null)){
            a.Consent_Provided__c = mostRecentCase.Consent_Provided__c;
            a.Consent_Provided_Date__c = mostRecentCase.Date_Consent_Provided__c;
            a.Consent_Version__c = mostRecentCase.Consent_Version__c;
            if (a.Consent_Provided__c == null){
                a.Consent_Expiration_Date__c = null;
            } else if (a.Consent_Provided__c == 'Verbal Consent') {
                a.Consent_Expiration_Date__c = a.Consent_Provided_Date__c.addDays(30);
            } else if (a.Consent_Provided__c == 'Written Consent') {
                if (a.X18th_Birthdate__c.addDays(30) < a.Consent_Provided_Date__c.addYears(10) && a.X18th_Birthdate__c > mostRecentCase.Date_Consent_Provided__c){ // Sheri updated add days
                    a.Consent_Expiration_Date__c = a.X18th_Birthdate__c.addDays(30);
                } else {
                    a.Consent_Expiration_Date__c = a.Consent_Provided_Date__c.addYears(10);
                }
            }
            a.Consent_Expiration_Workflow_Reset__c = false;
            a.Enrollment_Status_Text__c = mostRecentCase.GPS_Enrollment_Status__c;
            a.Enrollment_Form_Received_Date__c = mostRecentCase.Enrollment_Form_Received_Date__c;
            a.Latest_Enrollment_Unenrollment_Case__c = mostRecentCase.Id;
        } else if(mostRecentCase.RecordTypeId == DiscontinuedmentRecordType){
            a.Consent_Provided__c = null;
            a.Consent_Provided_Date__c = null;
            a.Consent_Expiration_Date__c = null;
            a.Consent_Version__c = null;
            a.Enrollment_Status_Text__c = mostRecentCase.GPS_Enrollment_Status__c;
            a.Latest_Enrollment_Unenrollment_Case__c = mostRecentCase.Id;
        }
        //Make sure that only 1 record will update the Parent
        updatedAccountList.add(a);
    }

    //update Account
    if(updatedAccountList.size() > 0){
            update updatedAccountList;
    }

}