Its difficult to receive money from Nepal , it's nothing to do with USA. It's Nepal that doesn't allow money to be sent without a reason and "I want to buy a house is not a reason ". Here is the policy , " It is not in the interest of Nepal, a third world country with very poor economy to send money out to a developed nation'. They only wanna receive , not send.

See if you can contact Standard Chartered bank as they have a branch somewhere in TX. Having an account there might help transferring between the locations. It's just a hunch.