Sharepoint item permissions "created by" need multiple entries

I have a sales opportunities list and only want the "Account Owner" and "Account Team" to be able to edit Items in the list, everyone else can view. In "Advanced Settings" I have "Read Access" set to "All Items" and I have "Edit Access" set to "Only their own"

Issue 1: I imported the list items so the "created by" column that SP looks at for permissions has my name on every item so I开发者_如何转开发 am the only one who can edit items

Issue 2: I need people listed in the "Account Team" people picker column to also be able to edit the list item

Issue 3: I can't filter the "Account Team" column by member as it does not allow "contains"

Thanks for any help you can provide

So should users only be able to edit their own items or members of the Account Owner and Account Team groups can edit any item in the list?

If it's the latter then set the Edit Access to any item. Then set the permissions on the list so that those two groups can contribute and a group encompassing all users can read/view.