A properly prepared will in Ecuador can be accepted in the U.S. However you should know, that, the real estate goes to surviving children and not to a spouse. I am uncertain about death certificates. You may want to address these and any other legal questions you have to an Ecuadorian attorney. Try Roberto Moreno: roberto@morenodidonato.com and/or Santiago Andrade: santiago1397@gmail.com.
Not a subject most of us like to think about, but we should all have a plan in case anything should happen to us…