Enquiry

Iam a newbie,what is TLD certificate? do i need to buy TLD before i can sell my domains and what is domain appraisal? i really need to know so many things so that i wont go against the rule of this business .What if someone want to buy my domain name? how will i transfer the name without being paid.I really need someone like you Zach.I will be looking forward to hear from you.

I have three names i want to sell and i want your advise.
Thanks