Hello there,
I have read the requirements and found myself able to do it for you.
I have ample experience in Salesforce development as a developer and administrator. Currently i am working in //GrayMath Technologies Inc as a salesforce developer. I have hands on experience of Salesforce app development, Customization, writing bulkify triggers and apex classes for specific business requirements of our client which is Sun Communities Inc.
Recently I have worked on a project in which i have written an apex batch class. Below are the main functionalities of this class
*Take accountIds from new opportunities and fetch name, email and phone from Account object on behalf of these accountIds.
*Fetch all the Leads having same name, phone or email with accounts.
*If match found then convert them into existing accounts.
While working with this batch class I got the same error you just mentioned in the header of this project and I have resolved that on my own now my batch class is merging 90,000 records into existing accounts without any error.
I have also automated data import in salesforce using data loader for Sun Communities Inc.
I always enjoy interesting tasks and love to setup new solutions.
I am looking forward to hear from you for further discussion.
Regards,
Tanveer Ahmad