Follow to join without a lawyer

[sjc200]

I've been a LPR for about 6 months and am in the process of applying for 'follow to join' for my daughter (who is under 21, unmarried, currently living in the UK). As part of my LPR application process, my employers legal firm started the application process for my daughter, and filed an I-824. I have now received notification from the National Visa Center that the I-824 has been accepted, asking me to initiate contact to carry the process forward.

My question is - has anyone done this themselves, or would the use of a lawyer be very advisable?

Many thanks
Steve