Concern if a multi-family is built in 1950s or older?

[Jared Brinn]

Hello - Looking to buy my first multi-family home in Cincinnati and perform a house hack to start my career in real estate. A lot of the multi-family homes I'm finding were built in the 1960s or even earlier. Is this a red flag? It's not even currently possible to even find a multi-family that's newer than the 1970s (something could come up of course). I would likely mitigate this risk by budgeting for a higher percentage of construction costs. What are other's experiences? Is this a stay away from this area?