In my opinion if fraud is going on then 90% of the time it is the managers who are perpetrating this.
Yes, some reader here will say (and has said) "if the lkr owner shows up and stuff is missing there would be hell to pay" and that would be true, but sometimes the managers just plain KNOW that the lkr stuff owner isn't going to show; the stuff owner might be in jail, might have moved out of state or out of country, might have died, etc.
The property mgr is in the best position to know this info.
I won't go to two separate facilities (each done by two separate auctioneers) for this reason.
Also, time manipulation is in the hands of the prop mgr. They can cut locks (see good stuff) list the sales in the legal notice and when lkr owner doesn't pay up, they can just NOT sell the lkr. Now it is THEIRS to do with what they want.
They can go in and get the good stuff, sell it or give it away, whatever. THEN when the goodies are gone and they have already settled the legal notice aspect first time out, they can sell the lkr the next time out. If asked why it wasn't on the NEWEST legal notice, they can just say "It was listed before" which is of course true. As I said, they can manipulate TIME to their advantage...they are there 24 hours a day.
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On the other hand, auctioneers are sometimes in colusion with prop mgrs. The auctioneer might KNOW that a lkr has just plain been SETUP for sale; or that prop mgr has gone through and pulled the good stuff, etc etc. The auctioneers are only doing their job, but they aren't going to share with us any SPECIAL KNOWLEDGE they have of the site or units in question.
This is just my opinion (based on my experience) your opinions may vary and you (dear readers) are entitled to them as I am to mine.