For example, you may reduce the maintenance and capex to 5% and then discover turnover occurs more often than you had planned.

This is a great case study on reasons to hire a property manager - it's the headache part...

As far as appreciation goes remember that in real estate you make your money when you buy not when you sell, as Warren Buffet once said: “Only when the tide goes out do you discover who’s been swimming naked.”

It's just not yet widespread.The case study of hotels "hotels making a nice spiff on guests when using a hotel phone" is a fine case study.  

Pictures work wonders and numerous studies have shown that pro photography pays for itself many times over.4.

You might want to join groups or forums specifically for private lenders—BiggerPockets is obviously a great place, but local REI meetups or masterminds could also help.Also, consider sharing insights or case studies from deals you've done (if you're comfortable) to spark conversations.

Then, within that market, study areas where it is actually less expensive to own than it is to rent.  

Purchase Another Investment Property and Utilize a Cost Segregation Study:When you reinvest in a new investment property, you can perform a cost segregation study to accelerate depreciation.

It would help if you studied how your home compares to others and ensured it is priced right.

@Harsh PoshtiThis will be dependent on the area and I would recommend you perform a market study to determine which project would yield better results and if either is even viable.