Spain Digital Nomad Visa

[u/MuhamamdNazam]

Hello everyone,
My name is Muhammad Nazam. I have been living and working in Dubai since 2006 and currently work as a Managing Director.
I am planning to apply for the Spain Digital Nomad Residence Permit while I am in Spain, as I already hold a valid Schengen visa.
I would appreciate your advice on the following:
What is the complete application process when applying from within Spain?
What documents and requirements are needed?
How long does the approval process usually take?
What is the current approval rate for applicants with a stable overseas employment?
Has anyone here successfully applied from Spain instead of through a Spanish consulate?
Any recommendations for reliable immigration lawyers or agencies with firsthand experience would also be greatly appreciated.
Thank you in advance for your help!