Buying a friend's townhome?

[Butch Greene]

Friend lives in south Charlotte. Has a townhome they are wanting to sell within the next 6 months. 
Ones nearby of almost identical location & build (2 story) are going for $305k fully updated flooring and appliances.
Friends condo has the original carpet, pet stains, original paint, appliances and cabinetry.
Has new AC.
We don't have a ton of money to buy it. 
How do we figure out what we should offer for it? Don't want to shaft them at all.
Want to BRRR it.
Will they get the townhome sold for much more than we could offer?  Friend has no intentions of renovating.
Is there a way to determine (and present to them) what others buying in that market are going to offer?

How should we approach it?  Pretty sure friend has their original mortgage from the purchase when like new.