Used the seller's agent to write my offer, which cost about eleven thousand
First property, a two bedroom condo in a 1980s complex, listed at $189k. I've been reading about notes and paper for a year and I still bought a condo, which is its own story.
I didn't have an agent. The listing agent was at the open house, she was helpful, and when I said I liked it she offered to write the offer for me. She explained she'd be representing both of us and had me sign a consent form on her tablet. I signed it in the kitchen of the unit I was trying to buy, which in hindsight tells you everything about how much thought I gave it.
What happened:
I offered $189k. Full price, first day of the second weekend. She said the seller had "strong interest" and I believed her. Two units in the same complex sold in the previous ninety days at $176k and $178k. I found that out afterward on the county site, which is public here, though I've since learned that isn't true everywhere.
Inspection found a failing water heater and evidence of a slow leak at the shower pan. Repair quotes came to $6,300. She presented it to the seller, came back and said the seller wouldn't budge, and suggested I could "absorb it since the price was fair." I absorbed it.
So call it $11k to $12k against where I probably should have landed, plus the water heater I'm paying for.
What I'd do differently: pull the last six months of closed sales in the building before I write anything, and have somebody who is only working for me look at the number before I sign it. The consent form wasn't the mistake by itself. Signing it without having done any of my own work was.