I need your advice on my current situation.You may have seen similar cases before, but I think my story is a little bit interesting .
I have applied for the Tier 1 general migrant Visa in 2010
Date of Stamp 20/Dec/2010 Cairo/Egypt
While this was happening Millions of protester started the January 25th 11 Egyptian Revolution. The Country Was literally closed, no schools, shops or banks.Curfew was imposed police was gradually replaced by military troops.

Entered the UK on 1/Apr/2011 ( after 102 days ) in order to find a home and a Job before moving my family.After I returned my mother informed me that my father was ill and was later diagnosed with (Liver Cancer) being his only son it became my responsibility to look after him and accompany him to clinics and unfortunately we suffered from long waiting lists in both public and private clinics.
So I will be justifying my absence for compelling an compassionate reasons .
absences :
Away #1 Away #2 Total/yr
Year 1 02-Mar-16 02-Mar-15 0 0
Year 2 02-Mar-15 02-Mar-14 15 15
Year 3 02-Mar-14 02-Mar-13 16 16
Year 4 02-Mar-13 02-Mar-12 28 7 35
Year 5 02-Mar-12 01-Apr-11 158 160 318 Medical Reports Medical CD & Certificate of death
Grand Total 384
When calculated on Excel it gives 4.956 yrs but not 5
Entry Date : 1/Apr/2011
Expiry of Tier1 ( after second extension) 14/03/2016
It will only qualify for 5 yrs if I applied on 02/03/2016 ( 12 days before expiry)
Kindly advise me on the following :
1- Can I apply before the qualifying period by 12 days , does the 28 day rule applies on my case since I entered the country after 102 days from the Stamp ?
2-If the compassionate reasons were not accepted for any reason

3-will they consider that I have 2 sons who came too young and doesn't speak any other language except English.
4- Will they Consider a mortgaged house with 5 year fixed term purchased on Dec 2014
5- If I switch to Tier2 (which is not easy) and will be impacting by dependents continuous stay will this be counted towards my stay without the need of having the Tier1 as the most recent Visa ??
6-My application is not straight forward so Shall I apply by post or in-person.
7- Any out of the box suggestions are welcomed.
Thank You Very Much
Regards
Abdel