The probate court will require proof that the original will was signed and lost.
A probate lawyer will be able to look at the unsigned copy of the will and the testament, tell you what else you need, and guide you through the process.
In other words, it will be possible to open the probate using the documents you have, but you will need additional materials to get there. The process requires a good amount of attention to detail.
For this reason, I would strongly urge you to obtain counsel to help you through this process. It will save you a good deal of time and aggravation.
Answered on Aug 25th, 2012 at 12:26 PM