Endorsement Received - Process for stage 2

Hi all, i am now eligible to apply for stage 2. I wanted to check a few things regarding stage 2

I plan to apply for my dependents as well. How soon can i submit their application after my visa is issued?

I am on another visa currently in the UK and not in the country at the moment, i plan to be back in December and then submit my application to UKVI, how much processing time do they take usually.

Are there any other key points I should consider in applying/ pursuing the UKVI application.

Thanks

You can submit yours and your dependents application at the same time. You don’t need to wait for yours to be approved.