Appraisal needed to purchase?

[Shawn York]

Hi-

Need an answer quickly as the market here in Denver is insane and I need to move quickly on an offer. Purchasing a property outright with funds from my SDIRA. Is it necessary to obtain an initial appraisal for the property I'm going to purchase? The quicker I can make the deal go through the more likely my offer will be accepted since there are multiple offers so if I don't need it, I'll bypass it since appraisers are currently scheduling 3-3.5 weeks out due to the market here. 
I've searched the forums but am only coming up with the yearly appraisal that needs to be done on the IRA, not this specific question.
Thanks in advance!