Buying through wholesale - no due diligence?

[Chris Hill]

Possibly buying a four plex through a wholesaler in UT.  I’ve never purchased that way before.  The price is only about a 7% discount.  They want a $5k non-refundable.  How do I protect myself if I can’t do a inspection before giving the 5k?  Do I just make them wait until I can do my inspection? It’s being remediate for meth which will take a few weeks.  It’s from the 70s