@dlm9 Try this:  Homebase > Tooks > Options > Firm/Preparer Info > Firm Information 

You cannot change the name of the Firm there as you will see it is greyed out.  to change that section, follow instructions by clicking on that link under the input section in that Firm/Preparer Info box.

For Employer EIN you should be able to add that where indicated.  Make sure to delete your Social Security Number also.