Re: are DV letters the only ones you really need to send certified?
Yes...I read that sending GW letter via CMRR...is a little too demading...or something liek that...so stick with regular mail..for the GWs...and the PFDs...
Re: are DV letters the only ones you really need to send certified?
The only reason you would send a DV via CMRRR is to create a paper trail. This way they can not say they never received the letter and it is not their word agaist yours. More to cover your self than anything else.