How to make an offer. agent is listing and buying , apts. not mls

[Andy Lanyi]

I have been getting a lot of listings of apartments from specific agents.  None of the apartments are listed on the mls. I have found a set of apartments that I want.   The agent wants to get both ends of the commission.  How should i even make an offer? Should I get a realistate attorney? The apartments are a good deal that I don’t want to pass up.  I have done my research.