1 no , only required for main applicant, that too only in cerain soc code jobs.
2. Not if you are applying at the same time. But still include marriage certificate, birth certificate of child etc. no need to add other docs.

as long as u arrive in the uk with your partner (main applicant), you can start work before he does. But u must enter with or after main applicant.

bank statement is useless now, since the balance dropped below.
The letter is fine. Ask sponsor to add a note to the cos as well. (they cant amend the cos but can add a note).
One this is done and a letter is attached to application, you should be fine.

630 for 90 days statement required.

IMO, if you are not travelling, u can continue and apply for ilr on LR. However, let others reply.
Do u work as well? U do know that u can combine salaries to make up 18600 required for your flrm.

to be honest, i would not be be too much concerned about this.
This much time is needed to stop/close companies and make them dormant anyway.

Wait.
Both for passport and UKVI replying and for others to reply on board. People can only reply and advise if they know anything about a similar case.

standard time is 8 weeks, not 3. They can take more time, without having to explain why. With points based visas, u do really know if you will get the visa or not, based on securing points etc. IMO, u should have applied within 14 days of rejection of the first visa. I am not sure the impact of appl...

if you are worried about your application, then dont book it for same day.
The few hours apart is, in case ur application is approved, they can then look at dependent application. But obviously the first application needs approval, hence the few hours apart thing.

no risk at all. you are allowed to apply even on the day of your visa expires.

mn1 is not a visa.
it is registration of kids born in uk, and when either of their parents have achieved ilr status.
if you do not want him to be british, u could wait till your partner gets ilr, and then u can apply for kids ilr as well.

so u want to tell them something that they have not asked?

you need to get your income history from hmrc, and see what does that say. If it was a limited company and u were the only employee, it is likely, the accountant was not filing the RTI accounts and u could be safe as all he would have done is shown the amount taken as salaries and not really which m...

sure can. if applying for same day, make the dependent application few hours apart.

correct.
Edit: Beaten. how close was that. 11:07

remember, even though u can switch within uk, u will need restricted cos, rlmt, english language and maintenance.

no one can speed up your application, certainly not this solicitor who failed to inform u this basic thing.
for now, u need to stop working and wait for approval.

630 for 90 days for dependent is enough

u should not need to apply it again. u are going to submit all old passsports anyway, so they should be able to see that the test was done using old passport which is fine

you applied for extension when u did not have a leave to remain (the latest one).
You do not have right to work, till your application is approved. should have done the same day application.

you are thinking too much. nothing to worry.

IMO, you dont need to show savings or earnings in SETM application

setting up a business and getting a licence straight away, may prove difficult.
I am unsure about the other question, so will let others to reply on that

u cant stay in the uk beyond your visa end date.
I dont see any reason why u cant do any work for him after you have left. SHould be fine.

If you have not received the curtailment letter, then u are fine for now. U can look for other jobs too.
If the sponsor application is rejected, they are better off applying again and sending the right documentation rather than appealing.