@Albert Gallucci as many have pointed out, in the commercial space of 100+ apartment buildings and offices, property classes have some pretty decent industry standards.We started applying these to 1-4 unit properties around 10 years ago, which you can verify on our blogs, because we saw too many newbie investors not properly taking into account things like, neighborhood status, tenant pool, property condition, etc.Unfortunately, there's no industry standard for this, but you can use some basic logic to think your way through your own Classifications.

I am new to real estate investing and BP, and I am excited to learn more about this space!

Even with some people I believe are honest, I simply believe most do not properly analyze and manage risk, as is evident with nearly every syndication doing capital calls right now because they didnt properly plan for rising rates.Dave Van Horn however, along with his company PPR one of the few people I trust in the real estate space.

That has become nearly an industry standard in the lending space. 

I’ve been in this space for a long time, coaching and investing, and I love helping people get started.

Quote from @Bob Avery: I don't recommend leaving a space blank because someone could later attempt to add something in.

When I got into the STR space in 2015, I needed my daughter to be available on a full ti e basis as PM.  

The way the house is situated on it, I'm not sure we have enough space to build an ADU (BUT, still worth looking into!) 

My best recommendation would be to find someone who is doing something similar to what you hope to do in the space and have a coaching call or two.

I furnish and provide amenities that warrants this so I do a lot of work to find comps in this particular space.