Investment Properties Under Rented

[Lorenzo Prieto]

Hello, 

I'm searching for my first investment property and I've noticed a few properties on the MLS state the property has had long time tenants and the units are all under rented. I'm curious on how to approach this when buying an investment property that is currently under rented. I understand in order to cash flow I would need to increase rent however I'm hesitant to immediately jack up the rent. My thoughts would be to do some minor renovations and find new tenants if current tenants do not want to pay the rent. Any thoughts/comments would be appreciated. Thank you!