Certainly potential for issues: for starters, take a look at Reg. Y:
§ 225.65 Appraiser independence.
(b) Fee appraisers. (1) If an appraisal is prepared by a fee appraiser, the appraiser shall be engaged directly by the regulated institution or its agent, and have no direct or indirect interest, financial or otherwise, in the property or the transaction.
Merely my opinion...