Cease and Desist in Michigan

[Judy M Ritsema]

I live in Michigan and am a wholesaler.  I just received a cease and desist for doing what is legal.  My contracts are assignable, I say it, explain to my customer, don't act like I am the owner, but explain all to buyer and seller.  It has all been a pack of lies.  The buyer didn't want to pay me my assignment of contract feeh. a realtor got involved and believed what they said and now I'm being lied about and feel like it's totally wrong and infringes on my rights as a citizen to earn a living.  

Would someone please help me with some laws, statutes in the state of Michigan?  I am demanding a hearing and need all advice from experience.  Thank you to all who can help with this ugly mess, that I did not do.