If you say cookie cutter, does that mean those prices are comps within the past 6 months? Make sure you check on this. Why is this house so much less? Is the price per square foot there?
I'm doing some FSBO sales right now. The state does require seller disclosure (form on the agency website) at the time the contract is signed and a lead disclosure also. Make sure the contract reflects what realtors are using to cover your rights. Brief contracts are great but leave so much out. Give yourself plenty of time to close also even though your lender sounds ready. Even a cash deal can take 30 days in my opinion. Get a survey.
In our state, you have 10 (business) days to have a home inspection and summarize to the seller what you want fixed or what money you'll take for the repairs listed. It allows you to back out of your contract if you're not satisfied. Time for submission and response is tight so know what the standard real estate contract says about this. Add it to the brief one if it's not there. Get the name of a good home inspector although most miss alot. This is important here in case there's problems you're not aware of.
Have yourself a good real estate attorney to check over everything. They are invaluable in my experience. Don't use their contracts though. They leave alot out.