Closed off spaces were just as @Bruce Woodruff said, a relic of times when you either had servants that worked in industrial spaces and methods that were a lot more crude than today, or when people were poor and could only afford to decorate out a single room as a "proper" place to entertain guests.

Find Brandon's videos on YouTube for the "four square" method of analyzing homes and practice.

I plan to follow "The Stack" method laid out by Brandon Turner in "The Multifamily Millionaire" vol.

There are methods to easily insert the comforter if you have knowledgable cleaners and they wash and dry easily like sheets. 

It's difficult to be completely hands off on your first one because BRRRR and flips are active investment methods.

We are following the BRRR method, so I’ve been doing my homework, but have a couple questions for the experienced. 

The BRRRR method is a great way to scale if you have the right team in place in advance.

Enemy Method!! 

That's dried up for us with the higher rates (and I suspect similar for the same strategy using HELOCs). 

Read up, tune into talks, and watch online classes about different methods in investing, deal checks, finance options, and taking care of property.