It's legally non-binding. Send a For Sale By Owner prospecting letter to neighbors in 3 simple steps.Learn how to generate leads for your FSBO campaign. Halstead broker Ari Harkov says the key to a lowball letter is to package the bad news between good news. Haven't had much luck with something solid through Google. When you are included in the lien sale, the City of New York sells your debt to an authorized buyer. The buyer then has the right to collect what you owe. Focus on three things: State your intentions, show that you have the financial means to make the purchase and make a personal appeal to the seller. Below is a list of the most common documents that are needed in order to sell your Queens' house. We are starting out with the legally required documents.