If someone out there has any experience with the following and can assist me with some pointers, I would appreciate it:
 
We have 2 separate companies set up in DBA and will be conducting business between the two.
 
These 2 companies will run their own separate financials and then will be consolidated.
 
My question at this point is how to set up accounts for the billing of services between the 2 companies so that we do not overstate our sales by the intracompany transactions.
 
We have decided to do purchase orders and billings between companies for tracking and auditing purposes.  We will also be cutting checks to pay for services between the companies.  We have separate checking accounts set up in each company.
 
If anyone can give me additional ideas to work through or heads up on DBA functions regarding this, I would be very grateful.
 
Thanks in advance.