How does one verify the information and numbers?

[Faaiz Khan]

Hey, I am brand new in RE but very excited and anxious to get started. Though I am relatively new to St Louis (just 2 years), I have driven around for hours, looked at properties, spoken to agents / developers, etc. 

I feel really good about a certain house that needs a lot of rehab work. It seems properties sold in last 6 months of similar nature in local and similar areas are close to the asking price. All the comps in the area indicate a lot of room for a flip potential. It is also a very desirable area for living so buy and hold could be another option

My question is how does one verify the information and numbers? Am I being nervous because it's my first deal of the sort? How do I know I am doing the numbers right or look at what I am missing?

Info on deal I am looking at:

ZipCode: 63131
Single Family Home, 3 bed, 2 bath, Approx 1100 sq ft.
Price: $225k ( I believe price should be $180k)
Flip potential: $280k / $300k