@david324 @Uzul24 - I know there is lot of anxiety when applying and your questions are very logical, but you should be asking these questions to the Angel Group you have applied to. As each Angel group has their own process and timeline. On top of that each case is different, so even if you find another startup founder who went through the same Angel, the timeline and experience would be very different.
Just to give some context, when you go through Angel or VC they would do a deep-dive into your business plan and financials as they plan to potentially invest their money in your startup. So don't expect a quick turnaround and be prepared to go through a long due-diligence and legal paperwork. Assuming they agree to invest in your startup, then a Term Sheet needs to be negotiated and finalized, legal entity created, share agreements done, money transfered to the new entity. All this needs to happen before they can even issue the LOS.
If you know how startup investing works then you should be able to make a good estimate on how long all this process would take. And you should be upright with your Angel or VC and ask them the process and estimated time to LOS. Any reasonable Angel or VC would share that basic information.