rjesssome thanks you on your fast reply i appreciated it.I am planing to send app this coming month but do you know anything about this?:Is it true that the application might lock in at different times regardles of when they received it ?thank you again you rock.i m thinking of hiring you lol i live in toronto
As per OP Manual, Section 5.4, page 8 (
http://www.cic.gc.ca/English/resources/manuals/op/op02-eng.pdf), "The lock-in of age for dependent children is the day CPC-M receives a completed IMM 1344AE and correct processing fees. Dependent children must be less than 22 years of age when the sponsorship application is received."
So as rjesssome said, your brother should be fine as long as you file before he turns 22 and he remains single. So tell him to behave while his application is processed.
Cheers.