Often the easiest "market value" is to base it on the figure the tax assessor has on the property. It will be land & improvements (that's the house) added together that make up the parcel/PPIN. You should be able to go online to courthouse to easily get this.
If that figure is whack, then you can get it appraised. Done by an appraiser with state registration & license & maybe their state seal on report. Often if house is old & unrenovated, you get an inspection done first (again registered, licensed) which in turn is given to the appraiser. If there are significant foundation issues, I'd suggests you get a residential engineering report done as well. Costs usually start at $300 then go up based on sq footage for inspection & appraiser. Engineer report could be more and harder to get.
Often family get a Realtor to do a "listing" & comps book to arrive at a figure as Realtors do these for free. If you need the sale $ to pass any review - like property is part of probate, or you have family with attys infighting, or you may be dealing with Medicaid - Realtor comps are not considered legal. But appraiser report is.
If that figure is whack, then you can get it appraised. Done by an appraiser with state registration & license & maybe their state seal on report. Often if house is old & unrenovated, you get an inspection done first (again registered, licensed) which in turn is given to the appraiser. If there are significant foundation issues, I'd suggests you get a residential engineering report done as well. Costs usually start at $300 then go up based on sq footage for inspection & appraiser. Engineer report could be more and harder to get.
Often family get a Realtor to do a "listing" & comps book to arrive at a figure as Realtors do these for free. If you need the sale $ to pass any review - like property is part of probate, or you have family with attys infighting, or you may be dealing with Medicaid - Realtor comps are not considered legal. But appraiser report is.