Heavyweight Realtor commission fraud

[Crystal Tynan]

I am a real estate agent and up until last week, I was working as an 'independent contractor' doing marketing and providing real estate assistance for a top real estate agent. When I gave my resignation, as her marketing director, she actively tried to hide the fact that she was about to accept an offer on a property she had promised me a commission on. She then lied to me and said she was taking the property off the market and I was due no commission. This is approximately $11k. I have a copy of the accepted RPA and NDA she made the clients sign, to prevent them from making contact with me again. I was the agent that sent them the disclosures. I have 100+ hours into this property and she was actively procuring, and hiding, the offer I initiated as we were discussing my resignation. 

I have been working on this house as the lead agent, with no pay, for 6+ months, under the condition I would be receiving 25% of her commission. I have several emails from her stating this, she confirmed this verbally to our broker and she signed an addendum to stating same. However, my broker is saying she isn't bound by any of that and I should just let it go. 

This is in addition to $500 she refused to pay me per a verbal agreement on another deal, and $26k she kept from me after she took back a client she referred to me after I got them to submit an offer on a property they ultimately purchased. 

I think my broker is wrong and her emails should be binding. Please advise.