In order that the donation of an immovable may be valid, it must be made in a public document, specifying therein the property donated and the value of the charges which the donee must satisfy.
The acceptance may be made in the same deed of donation or in a separate public document, but it shall not take effect unless it is done during the lifetime of the donor.
If the acceptance is made in a separate instrument, the donor shall be notified thereof in an authentic form, and this step shall be noted in both instruments. (633)