Honestly, you cannot size up a buyer at the offer stage. Almost everyone is on their best behavior while trying to get an offer accepted. Difficulty usually surfaces later, most often at the inspection. And a lot of the time the buyer is not actually unreasonable. Nobody gave them realistic expectations about what a normal inspection report looks like, so a standard list of minor findings reads to them like the house is falling apart, and they react. The clearest early signal we watch is the quality of agent-to-agent communication. When the agents on both sides are strong and talking openly, most problems get managed before they ever reach the buyer or seller as a crisis. When that communication is thin or combative, small issues escalate. If you are a seller, the practical takeaway: a well-represented buyer with a switched-on agent is usually a smoother buyer, regardless of how they came across in the opening offer. Pay attention to how their agent communicates and how the offer is put together. Those two things tell you far more about how the deal is likely to go than anything the buyer says up front.