The biggest thing you'd have to manage after purchasing the right deal for you would be the property manager, so you can make sure he's managing your property how you'd like. 

Since you are here on the BRRRR forum, the biggest thing is cash-out seasoning time.

The biggest thing we started doing after our first 2-3 flips is focusing on the higher-roi aspects such as kitchens and baths, and then doing "just enough" for everything else. 

The commissions are merely going into every contract now instead.Not a Big deal but the biggest change to the industry in a century?

My biggest concern is to deal with the eviction if they wouldn't move out, but hope the double rent deduction from the remaining balance in escrow will avoid such scenario. 

I have an abundance of questions and things to learn going forward with this, but right now my biggest question is in regards to zoning.What are the legal zoning classifications that will allow rv/boat storage?

My biggest hurdles included being in an extremely expensive market (Vermont) and understanding that if I wanted to get involved in real estate I’d have to look out of state.

That is for sure.BUT the biggest thing that is going to get you out of your jobs is living on less money.

As I am just starting up on real estate investing cash flow is my biggest focus at the time and will plan to diversify my portfolio in the future.

This includes the biggest I've worked on who had ~$1b in revenue.