30 letters each, and i thought snail mail was dead
, i think hardly anyone sends letters to each other, unless you don't have access to internet, don't you have chat logs ? , nothing wrong with letters if you've kept the envelopes probably the best form of evidence of your relationship
how long would it take, no one knows, could be days or weeks, i very much doubt more than 3 months
have you been married b4? is the father of your child named on their birth certificate ?