Get a good inspector (I would be happy to make recommendations) and do it FAST! Make sure he has a PE. As soon as that is done, as your agent to make sure you have a "first accepted offer" when someone calls the office for an appointment.
Make sure everyone follows up with the seller's attorney issuing the contract right away and see that your attorney reviews it as soon as he/she receives it.
Don't worry...it will probably all be fine. This is done here every day.
Different states have different customs and procedures so your agent and lawyer would be the best ones to advise you.