David Greene talk about his core 4 in the BRRRR strategy and this property management company helps find deals, has a list of contractors that are 1099 that they use and recommend, charge 8-10% (10% to start then drops to 9% with 2-3 properties and some people with large amount of properties are only paying 6%) for property management and do EVERYTHING (market, collect rent, send handyman if a work order is created, evict, 12 month tenant guarantee), 60% new tenant fee, and 20% renewal, have an in house realtor that works with investors like myself. 

It will cost more, take longer, and consume more of your energy than you will calculate in your presumptive analysis. 

I would also recommend reading David Greene's book, Long Distance Real Estate Investing.

This way, you have only one system to maintain, you will have the best system and you will save a lot of energy.

You are paying them if the place is vacant so you could see real quick if someone is living there from the energy spike.

Spend your time and energy finding the right property to purchase instead of finding a mentor..

@Vivek Desai it really depends if you have the energy to maintain the exterior of the home - if not, then a condo/townhome would be a pretty good option if the complex allows rentals (have your real estate professional check this for you).

For the DIY route, David Greene has a book out a lot of people read. 

So far it hasn’t hurt me with excessive vacancy periods and I really don’t put much time and energy into maintenance since they are doing their part.  

Sending all good energy and great deals.