How to notarize and legalize a sole establishment partnership in Dubai?

So i can be an investor in this sole establishment not a partner with no administrative rights?

when you do the share transfer it will be no longer a sole establishment and it will be a partnership company

Yes, technically I can't be a partner in the sole establishment.

But is there any type of legal agreement I can do with the owner to secure my share and claim my share in the profit?

Yes, it can.

So this type of agreement can also give me some administrative rights or I can just claim my share in investment and profit?

You can agree with him on everything: management, profits, losses, rights, and obligations.

We need to register that agreement in DED also to make it legal?

The registration shall be with the notary public.

Jazaka Allahu for your kind response.

So I will be an equity investor in this sole establishment according to this agreement you mentioned?

Yes.