These documents are the lifeline to your capital so as Jeff and @Chris Seveney have noted, don't skimp on the documents or the use of an Attorney to make use of the terms within those documents.I once heard Gary Keller of Keller Williams note that legal documents shouldn't be called 'agreements' but 'disagreements' because they only become valuable when there is a disagreement between 2 parties. 

I will say however, that there may be an indirect benefit to not APPEARING to hold many valuable assets.  

Plus, you might get some valuable insights right off the bat!

The passive losses will be valuable when you sell a property assuming it’s sold at a gain and you don’t want to do a 1031. 

Time to me is 1000x more valuable than money at this stage of my life and if I would much rather take the money I earned and diversify my portfolio into passive investments because I am too busy in my active life.

Stop hanging out with your deadbeat buddies who spend all day drinking, talking sports, and otherwise wasting away.

I’ve come across options like the Institute of Real Estate Management (IREM), National Association of Residential Property Managers (NARPM), and Certified Property Manager (CPM) programs, but I’d love to hear opinions on which have been the most valuable in practice.Additionally, any recommendations for resources, books, tools, or online communities that have been helpful for day-to-day management would be appreciated!

This has been discussed alot on here.Some people seem fine with no cable.I have nice vacation rentals and provide an easy way to watch live sports, news etc.I provide cable channels or you tube TV.In my listings I state up front that I provide cable channels because I'm not cheap that if other people won't provide this what else are they cutting corners on?

While you may need to sift through less serious inquiries, I’ve successfully secured some strong deals and valuable connections through these platforms.

This approach allows you to present professionally and gain valuable insight into the process, which you can then replicate in-house for your next property.