I have a trigger that is auto converting a new lead to a contact, opportunity, and account from a form submission. The leads are auto assigned from hubspot round robin. When it converts the lead, it's assigning it to a new person. I'd like to have the contact account and opportunity owner match the lead owner that it was converted from. below is the trigger currently. Any help would be appreciated. 

trigger ContactTrigger on Contact (after update) {
    if(trigger.isAfter) {
        List<Contact> contacts = trigger.new;
        
        Set<Id> acctIds = new Set<Id>();
        for(Contact contact : contacts) {
            acctIds.add(contact.AccountId);
        }
        List<Account> accounts = [Select Id, Name From Account Where Id in: acctIds];
        List<Opportunity> opportunities = new List<Opportunity>();
        User marketingUser = [Select Id, Name From User Where Name='Marketing' Limit 1];
        if(trigger.isInsert) {
            for(Integer i = 0; i < contacts.size(); i++) {
                if(!String.isEmpty(contacts[i].Which_Manuf_Service_Shall_We_Quot__c)) {
                    opportunities.add(createOpportunity(contacts[i], marketingUser, accounts));
                }
            }
        }
        if(trigger.isUpdate) {
            List<Contact> oldContacts = trigger.old;
            for(Integer i = 0; i < contacts.size(); i++) {
                if(!String.isEmpty(contacts[i].Which_Manuf_Service_Shall_We_Quot__c) && (oldContacts[i].Which_Manuf_Service_Shall_We_Quot__c != contacts[i].Which_Manuf_Service_Shall_We_Quot__c)) {
                    opportunities.add(createOpportunity(contacts[i], marketingUser, accounts));
                }
    		}
        }
        insert opportunities;
    }
    
    public Opportunity createOpportunity(Contact contact, User marketingUser, List<Account> accounts) {
        Date today = System.today();
        String tech = null;
        List<String> services = new List<String> {'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l'};
        List<String> serviceAbbreviations = new List<String> {'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'I','j', 'k', 'l'};    
            for(Integer i = 0; i < services.size(); i++) {
                if(contact.Which_Manuf_Service_Shall_We_Quot__c.equals(services[i])) {
                    tech = serviceAbbreviations[i];
                }
            }
        tech = String.isEmpty(tech) ? 'Other' : tech;
        String accountName = '';
        for(Account account : accounts) {
            if(account.Id == contact.AccountId) {
                accountName = account.Name;
            }
        }
        System.debug('Contact: ' + contact);
        System.debug('Contact Account: ' + contact.Account);
        System.debug('Account Name' + accountName);
        Opportunity opp = new Opportunity();
                    opp.ContactId = contact.Id;
                    opp.AccountId = contact.AccountId;
                    opp.CreatedById = marketingUser.Id;
                    opp.StageName = 'Quoting';
                    opp.Name = 'RFQ - ' + accountName + ' (' + tech + ')';
                    opp.CloseDate = today.addDays(30);
        return opp;
    }
}