Rumor has it that the U.S. military will be adapting this techniques soon now that Sun Tzu's 'Art of War' is no longer working.
And if you want to get really complex, you can somehow befriend the seller's realtor, or another acquaintance, someone the seller's realtor doesn't know, and hang out at his/her favorite Applebees, and see if you can procure info that way. Basic CIA entry level stuff. Good luck.
If you are asking does the the listing agent have to disclose details on another offer to your realtor, the answer is no. In fact, they cannot disclose that information without seller permission, and doing so would likely hurt their seller financially and a primary tenet of the seller/agent relationship is fiduciary responsibility.
Lance King/Owner-Managing Broker
Simply speaking, RE Agents owe THIER clients a set of fiduciary duties which I like to summarize as Loyalty, Obedience, Diligence, Disclosure, Accountability, and CONFIDENTIALITY. In my personal practice, I always require that a Seller specifically release the duty of Confidentiality regarding any fact regarding the details of an offer, although as you will read this is NOT REQUIRED (according to CAR).
Here is what the California Assoc. of RealtorsÂ® state regarding this topic:
Q 8. Can a seller's agent lawfully disclose the terms of a buyerâ€™s offer to other competing buyers or their agents?
The answer to this question depends, in part, on whether the sellerâ€™s agent is acting exclusively as the sellerâ€™s agent, or as a dual agent. If the agent represents the seller exclusively, there is currently no clearly-established law in California which precludes the sellerâ€™s agent from disclosing the terms of a buyerâ€™s offer to other prospective buyers or their agents.
Despite the absence of any law specifically on point, it should be noted that this practice is considered extremely controversial in the real estate brokerage industry. If an agent could represent a seller with equal vigor, with or without disclosing the terms of a buyerâ€™s offer, the agent might consider not disclosing the terms. â€¦â€¦â€¦Also, the disclosure of a buyerâ€™s offer to other buyers could cause those other buyers to offer less favorable terms than they would have otherwise, since they would now know the minimum by which they would have to improve their offers to beat out existing offers. However, if a seller specifically requests that a buyerâ€™s terms be "shopped," or if the agent deems this to be a necessary tactic to best serve the seller, it should be done with as much discretion as possible.
If an agent is representing both a seller and a buyer, the disclosure of the terms of that buyerâ€™s offer to competing buyers would probably breach the agentâ€™s fiduciary duty to the buyer. To avoid potential disputes, a REALTORÂ® might want to obtain an acknowledgement, signed by the seller, that the agent will not honor the sellerâ€™s request to "shop" an in-house buyerâ€™s offer. By discussing this limitation of dual agency up front with the seller, a REALTORÂ® provides the seller with full disclosure regarding the nature of dual agency, and reduces the possibility of disputes with the seller.
So, there does not appear to be a Law/requirement that details of a buyerâ€™s offer be disclosed to another buyer.