Section 4: Revision in Approved Values for Negotiation
    Procedure
    After a parcel value has been approved, there should be no
significant delay in initiating negotiations. If during negotiation,
it is believed that either market conditions or the parcel status
has changed to the extent that the approved value appears questionable,
revised appraisal information should be obtained and a revised recommendation
made accordingly. In this case, an “Update Appraisal for Negotiations”
assignment will be made in 
TxC
 and the updated
appraisal report will be entered.Examples of conditions which affect approved values are additional
depreciation or improvements to the property, loss by fire, flood
or other damage, removal of an improvement by the owner, conveyance
of a portion of the parcel being acquired, and/or changes in the
trend of the market in the area involved.
If an updated appraisal is acquired prior to the filing of
the Petition of Condemnation, send a copy to the property owner
and revise the offer, if necessary. For updated appraisals acquired
after the filing of the Petition of Condemnation, send a copy of
the appraisal along with form 
 to the property owner.
If more than one appraiser was used to determine the approved
value, and if a single updated appraisal report indicates a significant
increase in value, the other appraiser(s) should also be assigned
to update his/her report in order to properly support such an increase
in value.