In re Douglas, 200 Cal.App.4th 236, 132 Cal.Rptr.3d 582, 586 (4th Dist. Oct. 27, 2011) (A petition that has been substantially delayed may nevertheless be considered on the merits if the petitioner can establish good cause for the delay, such as investigation of a potentially meritorious claim, or to avoid the piecemeal presentation of claims.); citing In re Robbins (1998) 18 Cal.4th 770, 780.