Visa status of dependants of ILR

Hi, i would appreciate your kind help regarding my ILR application, I am a NHS doctor under Tier2 for last 5 years and eligible to apply for ILR currently. However when I switched job in 2017 my employer made a mistake in my CoS which resulted in a refusal with right to appeal in 14 days time, I did appeal within time but that was again refused. My old BRP was still valid at that time and I made a new application after getting a new CoS in 11 days time and successfully got my new visa with new BRP after 10 days time. If I explain this with time line I guess it would be better:
Application refused on 2nd Feb 2017 , re appeal done on 8th feb 2017,appeal refusal letter on 27th Feb 2017,new CoS and visa application done on 10th March 2017 and new Visa issued on 23rd March 2017.
Will this be an issue when I apply for my ILR? Do I need to contact an immigration solicitor? Thanks

There is no issue at all. You do not even have a gap as your BRP was still valid

Hi, I'm on tier 2 General and have applied for ILR, set O, my wife and child who r my PBS dependants are not due for their ILR till next year December but their visas are expiring in august 2021, after I get my ILR what route should I apply to extend their visa which won't affect their ILR timeline or reset it? I have had mixed messages, some saying to apply as PBS dependants and others saying dependants of ILR. Would appreciate your kind help.
Thanks

As you are applying for ILR on the basis of five years residence on Tier 2 General and not on the basis of Long Residence, your partner and dependents can continue on the PBS Dependants route before applying for ILR after completing five years residence in the UK.

Also, they will need a PBS extension in Aug 2021 (before current visa expiry) and apply for ILR in Dec 2022 as advised by @secret.simon already.