Spanish to English Law/Patents Law: Contract(s) Subleasing

I'm having difficulty understanding this sentence from a subleasing contract from Spain. I'm not sure if it's due to the phrase "quien de ella traiga causa" which I am having trouble rendering or if it's because there's some kind of missing noun or verb here. I'm not sure who is doing the transferring...this makes it sound like the property itself is transferring itself? Your suggestions greatly appreciated. I've included some alternate options in brackets.

Source:
La propiedad, o quien de ella traiga causa, tiene la facultad de trasmitir, a cualquier persona física o jurídica, en cualquier momento de vigencia de este Contrato de arrendamiento el Local, solo o agrupado con otros mediante la fórmula que libremente determine: aportación, compraventa, permuta, leasing, etc....

Draft Target:
The Property, or whomever it may indicate [or whomever may be indicated by the owner?], may transfer [sic: may be transferred?] to any physical or legal person, at any time during the validity of this Contract for Lease [of] Premises, to a single party or group of parties under the method deemed appropriate: contribution [?], sale, trade, lease, etc...

Thank you for your input!