REO Not yet listed on MLS

[Jeff Warner]

I was out farming an area today and found a couple homes that we're traditional vacant/boarded up so I wrote down the addresses. When I got back home I looked them up and noticed both we're just recently purchased by banks (both purchased in May) and had no Realtor sign in the front yard. So here is my question:

Since these are NEW and not listed on the MLS, do I contact the bank directly to negotiate? I think this should be a good opportunity to grab these before they are listed, just not sure how to proceed. Any REO experts have some feedback? Any help would be appreciated. Thanks.

Jeff