You don't need to learn REI in your job, that's a side thing. 

You'll learn a lot just from starting out like that with little to no experience at all (cosmetic renovation cost, managing current tenants, leasing out a unit).

If you spend time learning how to manage well, your income will increase, you'll save time, and you'll maintain your sanity with the courage to expand.

that we’ve learned in our 24 years, managing almost 700 doors across the Metro Detroit area, including almost 100 S8 leases:Class A Properties:Cashflow vs Appreciation: Typically, 3-5 years for positive cashflow, but you get highest relative rent & value appreciation.Vacancy Est: Historically 10%, 5% the more recent norm.Tenant Pool: Majority will have FICO scores of 680+ (roughly 5% probability of default), zero evictions in last 7 years.Class B Properties:Cashflow vs Appreciation: Typically, decent amount of relative rent & value appreciation.Vacancy Est: Historically 10%, 5% should be applied only if proper research done to support.Tenant Pool: Majority will have FICO scores of 620-680 (around 10% probability of default), some blemishes, but should have no evictions in last 5 yearsClass C Properties:Cashflow vs Appreciation: Typically, high cashflow and at the lower end of relative rent & value appreciation.

* Finally, could you recommend any valuable tools or learning resources?

There are four key principles that guide me:- Consistency is everything- Never stop learning- Take Action- Value relationships over everything else1) Consistency is everything There are multiple things that I do every single day- Read – 10+ minutes.

Also who pays servicing fees. if curious to learn more reach out. 

If there is one thing I have learned, is nobody is going to charge you a fee to learn to get rich lol.

Great investment, a lot of learning, and a good ROI Lessons learned?

I've been a financial planner for 17+ years and one of the main umbrella theories I've learned is that often times, the simpler things are the better they are.