Could the investor be scamming you? Yes that is possible...because they are looking for someone in a situation where they are in a hurry to get out of their property.
It is in your best interests to be represented by an Agent that you choose for your self, not one recommended by or working with the investor. Maybe try an internet search for agents in your zip code area. I wish you well.
Well, sure, it's possible. I think you need to talk to an agent. Any agent would be willing to have a conversation with you about the real estate market prices in your area at no obligation to you. That will help you determine if the price you're being offered by the investor seems realistic or not.
Information is power.........
The #1 rule is always know what you are signing, and that means usually having a 3rd party review the documents.