So, size, location and theming to answer your question.

It answered questions I had and opened up a few more to ponder on. 

However, beyond giving this group an opportunity to do the right thing (I responded with appreciation for the transparency, the only 2 questions we're allowed to legally ask, and a gentle reminder that we are a dog-friendly property and it's a minimal cost of $20 per night), is there a better way to handle this?

Hi everyone,I’m hoping to get some advice from those of you with real estate experience.

I would have you consider these two questions: 1.) 

As I continue to grow my real estate portfolio, I’m actively looking for other commercial and residential investment opportunities to expand my footprint in the market.

There's a very good chance the issue(s) you face have already been discussed and answered.Ask questions in the appropriate forum.

My question is how can I access my ADU and Boat without having to contact the tenant. 

Any pointers as to where I can get some benchmark answers for these questions?

I've looked into several real estate CRM tools and most of them are lacking in features.