One point of disagreement: don’t wait for a perfect dataset before viewing anything. Inspection notes can teach you what the data leaves out, particularly with renovation. After each viewing, estimate what you think it will sell for and record your reasons. When the completed price appears, you...
Before choosing a lender, choose the comparison horizon. A loan that is cheaper for the first few years can become the worse option if you retain it, while a full 30-year calculation may give too much weight to costs you never incur.
I would build two cases. If you expect to move or refinance...