The data did exist. It was pending at the effective date but closed prior to forming an opinion.
Yes , the data did exist as of the effective date,
and it existed as a pending sale ! Keep as pending on the grid, analyze in comments if it influenced your opinion that it closed after 07/13 before you signed 07/15. we will forever disagree on it !
Fulfilling an assignment element is what makes a result meaningful . Below from a Fannie selling guide: I dunno, seems to me they mean what was closed and what was offered or what was in contract as of the effective date
"The appraiser’s analysis of a property must take into consideration all factors that have an effect on value. The appraiser must analyze all closed sales, contract sales, and offerings or listings of properties that are the most comparable to the subject property in order to identify any significant differences or elements of comparison that could affect his or her opinion of value for the subject property
as of the effective date of the appraisal report"