I also ex-*** officer ... u believe
why pay $$$ to this type of so called specialist

... even if u ask l**y**s to write in , u probably will get the same result
the only difference is better phrasing of the appeal letter , but then the end story is ...u still need to write in n appeal ..
these so called specialist specialist does not give u a special access to ica ... n therefore i dun believe in such specialist.
imagine u appeal 3 times n u got to pay 3 times just to draft the letters ... if u loaded wth $$$ then ok lo ..
1 thing to note , unless you are legally related to that person, ica will NOT reveal anything to you or whoever, even if u are related they might not reveal to you too.
1 standard reply they SURE give ... According to R&R, sections XXX, to prtect the safety of singapore, the ica officer have the rights to exercise his rights based on his discretion to refused his/her entry into sg n etc etc ...
I have many such replies from them when i wrote in for my friends n my wife ... but then never a single reply on my questions asked.
nothing personal .. just my 2 cents contribution ...