My neighbor has listed his but also has had occupancy issues as an STR and said that most people looking for either rooms or cheap stays but I can't comment on that as I have no experience listing as an MTR.

He does a lot of webinars, zooms where you can ask questions and has people to do Trusts, etc, entity formation.

I am looking for advice from people who have done this in the past.

Depending on the type of commercial you want to get into my suggestion is to go work for a company that does commercial real estate as learning from people who do it and getting paid at the same time is not a bad strategy 

Typically these people are really forthcoming with info and can tell you.

The feedback I've received from people is that the legal side tends to be excellent. 

Total number of people in the 4 plex is 6. 

The best way to start is by surrounding yourself with people who are already doing what you’re trying to do.

I'm seeing a lot of people lately trying to force themselves into house hacks without an immediate cash flow/equity play and "banking" on appreciation or rates dropping. 

I see far too many people spending all there time chasing property that they cannot buy because of lack of funds. spend that time making money first and then go after real estate.