I'm working off of some code that I found on this blog:
http://prats23.wordpress.com/2014/04/27/salesforce-dynamically-addingdeleting-rows-in-visualforce/

To implement an "Add/Remove" functionality to a visualforce page. The trick is, I'd like to add the add/remove functionality to the Account level as well.

Currently, it is working with Contacts that are related to a single Account and it let's you create a datatable that you can have an add/remove button on each row. I'd like it to be that I can add/remove at the Account level as well. Here is the controller code:
 

public class addAttendee {
public Account accounts;
 public Contact del;
 public List<Contact> addattendeeList {get;set;}
 public List<Contact> delattendeeList {get;set;}
 public List<Contact> attendeeList {get;set;}
 public Integer totalCount {get;set;}
 public Integer rowIndex {get;set;}
 
 
 public List<Contact> delAttendees {get; set;} 
 public addAttendee(ApexPages.StandardController controller) {
 
 accounts = (Account)controller.getRecord();
 attendeeList = [Select id, firstName, LastName, Email, Phone from Contact where AccountId =: accounts.Id];
 totalCount = attendeeList.size();
 
 delattendeeList = new List<Contact>();
 delattendees = new List<Contact>();
 }
 
 public void addRow(){
 addattendeeList = new List<Contact>();
 attendeeList.add(new Contact(AccountId = accounts.Id));
 }
 
 public PageReference ave(){
 
 upsert attendeeList;
 delete delattendeeList;
 return (new ApexPages.StandardController(accounts)).view();
 } 
 
 public void deleteRow(){
 
 rowIndex = Integer.valueOf(ApexPages.currentPage().getParameters().get('rowIndex'));
 System.debug('row to be deleted ' + rowIndex );
 System.debug('row item to be deleted '+attendeeList[rowIndex]);
 del = attendeeList.remove(rowIndex);
 delattendeeList.add(del);
 
 }
 }