How do you estimate your first Rehab????

[Aaron Gorum]

How do I even start to estimate the money needed to get this property in a salable or rentable condition (I am open to both)?? The house that was built in 1940. It is approx 1300 sqft. It has no HVAC system and no insulation. I am sure the electrical needs upgrading and I will need to add a bathroom to make it comparable (3bd/1ba). It has been vacant for several years. There are no structural issues to my knowledge. Any advice would be appreciated.