1. Please note transfer of immovable property can be made either by sale deed or by gift deed.
2. In gift deed there is no consideration of money and it must be made in consideration of love and affection only.
3. Gift deed is very much permissible among siblings or family members also.
4. For registration of gift deed all of you may not travel to India as you can execute and notarise a POA in favour of another sitting in USA in which basis the POA holder can do the formality on your behalf.
5. Don't mention exchange of any money in the gift deed.