Wholesaling contracts

[Gina Tavizon]

This has always been a mystery to me and I've never found a black and white answer. I did a little wholesaling years ago and used standard real estate contracts.  And in the buyer section, I would put my name plus "and/or assigns".  I hear people do this all the time and then I've heard it's illegal.  I'm ready to wholesale again but I really don't know how I should be going about this.  I really want to find the right way(s) to wholesale.  Any feedback would be so appreciated.