I have an Apex Trigger in our Sandbox that is designed to assign leads to the Sales Rep. who owns the related Account. The requirements are as follows:

1. Automate the routing of leads for existing accounts to the account owner.
2. If a duplicate account/company exists and each have different owners, any new leads created should be assigned to our Sales Manager.

Example:

ABC Company has an existing account where the Account Owner is John Smith
ABC Company has a 2nd existing account where the Account Owner is Jane Doe
A new Lead is submitted for ABC Company
Expected Result: Assign the Account Owner to Sales Manager by default; she will be the tie breaker.

The code I developed:

rigger addAccount on Lead (before Insert, before Update){
  
  final String marjorieUserId = '00500000006pFs8';
  
  List<String> companies = new List<String>();
  
  for (Lead l : trigger.new){
    if (String.isEmpty(l.company)) continue; 
    if (l.ownerId != null) continue;
    companies.add(l.company);
  }

  if (companies.isEmpty()) {
    // we can not pull any accounts without knowing their names
    return ;
  }

  final List<String> nameValues = new List<String>();
  
  for (String companyName : companies) {
    nameValues.add('(Name = \'' + String.escapeSingleQuotes(companyName) + '\')');
  } 

  final List<Account> leadAccountIds = Database.query('Select Id, OwnerId, Name FROM Account WHERE ' + String.join(nameValues, ' OR '));  

  Map<String, Id> acctNameId = new Map<String, Id>();
  Map<String, Id> acctNameOwner = new Map<String, Id>();
  Map<String, Boolean> duplicateAccountMap = new Map<String, Boolean>();
      
  for (Account a : leadAccountIds) {
      acctNameId.put(a.name, a.Id);
      acctNameOwner.put(a.name, a.ownerId);
      if (duplicateAccountMap.containsKey(a.Name)) {
          duplicateAccountMap.put(a.name, true);
      } else {
          duplicateAccountMap.put(a.name, false);
      }
        
  }
  
  for (Lead l2 : trigger.new){
    
    if ((l2.ownerId != null)) {
      //ReportingService.notifyEngineers('lead already has an owner', lead.Email + ' : ' + lead.ownerId);
      continue;
    }
    
    if (marjorieUserId.equals(l2.ownerId)) {
      ReportingService.notifyEngineers('lead is assigned to Marjorie', 'at addAccount triggah line 27');
      continue;
    }
    if(acctNameId.containsKey(l2.company)) {
        l2.Account__c = acctNameId.get(l2.company);
      if (duplicateAccountMap.get(l2.company)) {
        ReportingService.notifyEngineers('assigning lead to Marjorie', 'at addAccount triggah line 33');
            l2.ownerId = marjorieUserId; // Marjorie
        } else {
          if (marjorieUserId.equals(l2.company)) ReportingService.notifyEngineers('lead is assigned to Marjorie', 'at addAccount triggah line 36');
            l2.ownerId = acctNameOwner.get(l2.company);
        }
    
    }
      
  }

}


The issue is that the Trigger is firing again when the Sales Manager tries to reassign the new lead to it's corresponding Account owner; it blocks her out and she is unable to reassign the lead.

I would like to add logic to the code that prevents the Trigger from firing twice.

Thanks,
Julien