From the starting of this thread, I had a feeling that you are kind of reluctant to give up your claims for the properties in Nepal and looking for a way out to get a peice. Com'n man if you are a US citizen then transfer the property right to your bothers. They are you bother, its not that you are giving it to a Tom, Dick or Harry. Tell them you want to have Amsa Chod and your brothers will happily arrange it for your without you paying anything.

If you try to claim the property, your brothers will look for legal consultation. I would have done the same if one of my brother is well off in US and still want a piece of poor me. Then they will certainly file the case as said in option 3. Then what will be your plan, hire a lawer for the case or go to nepal for every hearing. Besides your relation with brothers will be bad.

Call you brothers and tell them you don't want anything and ask them to arrange for it.