Then just ask: Hey, since you moved out of state I was wondering what your intentions were with this house.

If it does go to probate, hopefully your brothers and you can amicably go the informal route vs formal (I've worked with families in both when buying properties out of probate and informal is FAR easier).Since there's no debt on the house, maybe you could sell with financing or maybe you could even buy out your brothers with financing -- that way you maintain ownership and just pay them a monthly amount.

They do seem possibly open to seller financing the difference of $172K.

Ultimately you will have to sell your house at a discount. 

Quote from @John Friendas: There's a house I'm considering buying with a business partner as an investment rental.

Finally, even with a substantial discount, the house may not be worth it.

Quote from @Victor Yang: If I gift a house, what amount will go towards the lifetime gift limit, the amount i purchased the house for, or the current FMV?

This only really matters if you plan to buy a house again soon...within 9-12 months4.

Now the senior lenders start filing foreclose against the original sellers.. the Original sellers start filing complaints with the AG.

Sitting on 10 acres , build a few more houses