Thanks to all for your help.  I have now started creating a sales receipt for each tenant, each month.  I'm still having a problem with my new Item for "Service - Rent".  When I created the new item, the account I pointed to is the check account that I deposit to.  But when I make a deposit, the tenant's rent is listed in the account as a Payment, and also a deposit.  I was thinking I should point the item to Undeposited Funds account but I get an error.  What am I doing wrong?