You need to:
1: be prepared to thoroughly research the property condition, as there will be very few disclosures
2. ask even more questions than normal of the neighbors, government representatives, and inspectors, to make sure you uncover any issues associated with the property, fences, disputes, noise, crime, local area, etc.
3. have a clear strategy going in to the offer
4. be prepared to be patient if renegotiations are needed...sometimes heirs disagree, and these disagreements can trigger legal scenarios that take more time.
Since you don't appear to live in the area you are purchasing, you want to double down on your due diligence, and make sure you hire an agent who is very thorough, knowledgable, and who will explain strategy options before you write your offer. Good luck!