"Buyer responsible for any and all municipal resale cert and or inspections" is typically used for a property owned by an estate, trust, bank, foreclosure or when the sellers have no money to do any repairs that might be required by the township or boro. In some municipalities, there is a permit required when a property changes hands and to get that permit, the municipality does an inspection. This phrase means the buyers need to pay for the permit, inspection and whatever repairs are required to get the inspection. Each municipality charges their own rate and not all of them require this.
If you choose to go through a property like this, it's best to call the municipality and see what they require. Many have a check list or list of things they look for. If you can get a list like this and go through the property with the list, you'll have a better idea of what kind of costs. you would be required to spend if you want to buy the property.