Thank you for your help. The salesperson is working for the builder. He is the one signed our purchase agreement and all the addendums. He is also the one trying to back out of the addendum he signed. He is saying that his broker ( I assume the broker he refers to also work for the builder) declined the addendum he signed. We called the builder main office, the answer we got is that they did not approve the last addedum the salesperson signed. Almost like the saleperson did not talk to anyone and just assigned the price adjustment addendum. Of couse, as buyer I have no way to know if this is true or just the trick the builder is playing to back out of the last addendum.
So, based on your clarification, the builder signed the addendum, but the agent's broker is not happy with it? I can envision that there may be some vague or confusing language issues which need to be clarified. This can be done by mutual agreement and a new addendum resolving the specific language but maintaining the overall intent.
If the broker is not offering this, why and what is their standing to interfere with your fully executed transaction with the builder?
Agents and brokers are not principles of in the purchase & sale of homes; we facilitate the transaction representing our clients. We generally do not have the power to void a fully agreed upon document against the wishes of either or both principles.
Ask the broker for assistance with this directly. It sounds like you have a contract; I hope you have copies of everything.
Once again, thank you for your help
I would start by reviewing your original contract. Is there a clause which requires the builder to offer you a better price based on the prices they offer on other homes. Assuming there isn't, under what basis did the builders salesman create the addendum which you have signed, but the builder now refuses to sign? Take a look at whatever is in writing regarding the "lowest price guarantee" you mentioned.
Any real estate transaction will be governed by what the parties agree to in writing. If they have a written policy to lower the price, you should be able to hold them to it. If your contract and the publically available documents do not support this policy, you'll have a difficult time.
Eventually you may need to seek legal counsel to sort this out, but I would recommend you gather and review all the documentation you can first to simplify the process and obtain the best result. I hope it turns out for you.