English to Spanish Bus/Financial Other Outside counsel agreement

Hello colleagues,

First of all, I will mention that this project has Spanish for Spain as its target language.

Although I understand this term well, it seems there are many solutions to its translation, so I turn to you to give me your ideas on which is the best of the possible translations.

I have considered:

asesores legales externos
abogados externos
servicios jurídicos externos
asesores externos

I would appreciate hearing from you on these options or others that I have not thought of as to which would be the best Spanish terminology for this English phrase.

Here is some context:

OUTSIDE COUNSEL

ENGAGEMENT STANDARDS

EXPECTATIONS

XXXX (“XXX” or “Company”) expects its outside counsel to ethically provide XXX and its business unit companies with the highest quality legal services in the most cost-effective manner possible. These Engagement Standards (“Standards”) govern the relationship of XXX with its outside counsel and apply to all XXX business units. Information regarding XXX, its business units and products can be found at http://www.xxx.com. References to “XXX” in these Standards include all XXX subsidiaries, business units and divisions, and legal department personnel at XXX. “Outside counsel” and “law firm” are used interchangeably throughout these Standards.

Thank you very much in advance.

Laura