Questions Legal Name?

I am trying to get the Legal name of a company listed in the Companies form to populate in an ARM Column Set Header.

I have tried using several aspects but can not get this specific field to pull through. I have tried several different references but always get the same error message. "The expression contains the 'CompanyBranchBAccount1099' object that is not defined in the current context."

I have also tried a variation of the standard Company name get def. below with no luck.

Standard definition =Report.GetDefUI('RowCompanyBAccount.AcctName')

Does not work =Report.GetDefUI('RowCompanyBAccount.LegalName')

Does not work=Report.GetDisplayName('CompanyBranchBAccount1099.LegalName')

Does not work= Report.GetDefUI('CompanyBranchBAccount1099.LegalName')

Any help on this would be great.

Thank you,