When a lender calls to order a "recert", about 99.999999999% of the time they really want an update to an appraisal because they are concerned about current market conditions, not the market conditions at the time of the original effective date. They might be requesting this service for several reasons. New construction, appraisal done over six months ago, took more than six months to build is one example. Property is unusual, took a broker months and months to find a lender that is willing to lend on that type of property, another example. Problems with the borrower in their application--went on vacation for 3 months wasn't around to sign, in process of divorce, took months to figure out who was going to be responsible for the loan, lender took too long to verify employment and residence history, etc for other examples--all could be situations whether it is a new or older, existing home. Now Fannie Mae and other lenders do not like to see ALL sales that were used to come to an opinion of value more than six months ago--so call for a "recert" to get information on current market data. So then the appraiser can decide how to handle this request. My personal policy has been that is if there has not been any changes to the subject and the market, then I can prepare my Update to an Appraisal letter with a new grid with new comparables to reflect current market data, add photos of the front, rear, street and anything else of interest of the subject, research and analysis the current market, take photos of the ones I decide to grid, prepare a map that shows the location of those comparables, make out my invoice and ship off to the client. If after investigating I determine the market has changed or the subject has changed, then I will decide to use a 2055 or 1004 to report those changes as well as any change in my opinion of value. If nothing has changed, my letter is an extension of the original report, all the information in the original report remains as true as of today's date as the original effective date of opinion, only new comparables are being added.
Oh by the way, new comparables or lack of new comparables have no effect on a Recertification of Value because nothing since the original effective date is considered.
Regardless of which procedure you follow, it is a new assignment and all applicable USPAP requirements need to be followed. The main change after 01/01/2003 the expression Updated Appraisal will no longer be used but I am sure a similar letter to my current Update to an Appraisal letter will still be feasible in certain situations. In fact everyone that has received my Update template, I really would like to have some ideas on how to reword that "Reference to a Previous Assignment" letter (and not using the word update)!
By the way, software packages that have a similar Update to an Appraisal one page form have a bug that I have seen. An Update to an Appraisal is NOT a stand alone limited appraisal assignment. A letter or one page form is an extension of the original report or just an additional addendum to the original report. Still part of the total package, just writtern several months apart.