Under Contract, need feedback

[JJ Lopez]

After several offers on various properties I'm finally under contract on a deal (yay). 

Just did inspection and am awaiting on appraisal but I have some concerns which I don't know whether to file under newbie jitters or red flag.

Property is a 4plex (1 bedrooms) in Pueblo CO was previously bought early 2018 for $140k nicely renovated (not full gut) and now for sale for $355K with apartment rents at about $3800 plus potential to rent out 2 car garage for about another $200. 

Concern is that I'm overpaying for a property and the leap from 140k to 360k should trump the potential cash flow numbers. I'm still pending appraisal but should that come in at the asking price, should I then feel more at ease with the purchase?    

My realtor has been pretty positive about the purchase but I am looking to see other perspective. 

Basically trying to understand if you were in my should what other info you would want to see,know to move forward. 

Appreciate the  thoughts on this.