Property Inspections By City or County

Good Evening BP,

I am currently looking to place an offer on a 6 unit in Westmoreland County Pa.  The property is in decent condition but it has been owned by the same family for years.  My question is, if we buy the property will the city or county come in to do an inspection and make us bring the house up to code.  I am not over familiar with how that works and I was hoping someone could shed some light. Thank you.