Then tell your parents to create a Will if they don't have one or add new conditions in a Will if they have one, before you get married.  

Do write such conditions in Will even though there is a divorce she might not get that much benifit because you've limited power over the 

wealth,business and property. 

So that way, if you are in US with Green Card and she stays in Nepal after the marriage while case is processing, and if any how, she wants

to divorce, since you've limited power over the property, she has to go through your parents, sibilings, all the people who involve in the Will. 

Biggest advantage is you don't have to reveal your parents Will when you get married to other party.