Remove personal photos from your home when showing. Many clients are distracted by them and miss out on key selling points of the home.
Try looking up you county assessment. For example here in Erie, PA we can go to www.eriecountygov.org and enter the house address to get the information. It's not always listed, but in most cases it is. I hope this information is helpful.
I also researched houses that recently sold and the property values per the county assessment and my home is assessed higher than all of the houses, per county valuation. Those same homes listed as comparibles list higher through z-estimate and my home list at a much lower value through z-estimate. Is this because z-estimate has my house listed as a two unit? How do I correct the two unit issue?