Do you have multiple for vendors per trade?

After completing Anthony Chara's Apartment Investing Mastery Program, I'm totally sold on his method, materials, and process.  

Good day everyone, I am fairly new to multifamily real estate investment and learning this trade.

OMG, new genius method nobody knows about!

Material Participation in a Real Estate Trade or Business.This is pretty straightforward but you must materially participate in a real property trade or business, such as development, redevelopment, construction, reconstruction, acquisition, conversion, rental, operation, management, leasing, or brokerage.2.

He teaches the Brrrr method and many other types of strategies.  

I have been rehabbing houses in Milwaukee for 15 years and I am on my jobs at least 2-3 times a week - even though we use the same trades and typically do the same work.

Usually people use the enemy method to figure out the worth of the investment.

While that’s appealing, the added complexity with tenant turnover, varying personalities, and managing shared spaces can make it a bit of a trade-off.I’m curious, how does it look in other markets?

For starters it can be more difficult to find comps as there are often less multi fam trading than SFR of the same size and count.