REO Purchase Question

[Josh Stevens]

Hey everyone!
If you all have some time, I would really appreciate it if you all could help me with the questions below. I have a few Real Estate agents and Loan Officer acquaintances who are very interested in buying up foreclosures once some come on the market. My question is are real estate agents and loan officers allowed to buy a property that they helped the buyer with or do the banks or real estate brokerages have guidelines that forbid this since they have a conflict of interest? I can’t seem to find anything on this topic, so I’m assuming it may be different with each bank and brokerage. Let me know what you all think. Thank you.