Who Orders the Appraisal?

[Alvin Grier]

Note: In the context below, I'm referencing a situation where a private lender is funding the purchase/rehab/reselling of a property with an experienced real estate rehabber/investor.

Before the lender funds the purchase of the subject property, it's in their best interest to get an appraisal. The appraisal will make them more comfortable with the ARV/LTV ratios they calculated as a part of their deal analysis.

With that said, who normally pays for and orders the appraisal for the subject property; the borrower/real estate flipper, or the lender, as it is with a traditional lender or bank?