LFC1 table balances need to be corrected

Hi all, I’m hoping you can assist us with an issue we are facing with the LFC1 table.  The carry-forward balances in this table are incorrect based on the actual documents posted in our SAP system.  This issue appears to have been created when the client’s SAP environment was set up a few years ago.
The client’s SAP system was “carved” out of the parent company’s existing SAP system and only documents directly related to the new company were included in the new SAP system.  However, the LCF1 table balances loaded in this new SAP system still included amounts related to the parent company – for which no documents exist in the new SAP system. 
Running F.07 for previous years does not correct the inconsistency in vendor balances between the LFC1 table and the open line items tables.
Can anyone provide us with a way to correct the LFC1 table so that the balances in this table match the balances calculated based on the vendor open line item tables?
Any assistance you can provide is appreciated!
Shere