Does FHA Software prevent retroactive Tenant Change entry from affecting previous month accrued A/R financial balances ?

Yes. Once a previous ACCRUAL reporting month has been closed, all financial report A/R balances are locked and will not change. A/R balances affected by retroactive tenant change entry activity will automatically be adjusted in the month retroactive tenant changes were processed. Running the G/L Posting Utility feature at month end completes this process.