You still have flooring, cabinets, bathrooms, plumbing, insulation, paint, etc, so all that cost remains the same it would seem. 

An excellent multifamily trainer with much credibility in the market is @Gino Barbaro of Jake and Gino.

This is an excellent question and one that often sparks lively debate in the real estate investing community.

I want to ensure their experience is excellent in all areas.

Sounds like if you know and follow the rules you should not only be OK but pretty well insulated from competition (people swarming in and oversaturating)

You've become part of an excellent platform for networking and education!

“it is VERY hard to screw up when buying i.e. a duplex in good condition in a desirable neighborhood and either self-manages or hire a quality PM to manage.”excellent point 

I then created an excel sheet with those estimates to know (a) what to offer for land to make my numbers and (b) to hold the sub to what they estimated for me.  

The course came with PDF texts (not books) and a very lengthy excel sheet to memorize and tackle on my own.

Quick tips…✅ Everyday Homeowners - track all home improvements as you could qualify for energy efficiency home improvement credit - new exterior windows, new central A/C, new hot water heater, new insulation material.✅ Investors - Keep detailed records of ALL rental property expenses to reduce your taxable income - helping your CPA spot additional tax saving opportunities.Imperative to use a CPA who is well versed in Real Estate tax code.My CPA is just that - DM me to get his contact information....