Probate results when you pass away with an asset in your name alone without a designated beneficiary. Real estate is the most likely trigger of probate. Either you purchased the real estate in your name alone or with your spouse. If you spouse has predeceased you and you are the only name remaining on the title, then Probate will result when you pass away.
In order to avoid probate, you can deed your home into a revocable trust. Another way to avoid probate is to create an Enhanced Life Estate. Either way you can avoid probate.
Each situation is different and only after a consultation can we advise you what is right for you.