I would advise asking the company if you could speak with the current owners they are serving.Keep in mind that short-term rental (STR) management is a completely different style of management, especially if handled correctly.

I was going to say open is likely to be more of a trendy aesthetic but the truth is industrial loft style apartments have held.

You are setting up an adversarial relationship with the seller with the takeout style menu options that are all the same in the end.

We still end up doing a few things like upgrading appliances or installing recessed LED lighting and dimmer switches and other life-style upgrades to attract top-notch tenants. 

I'm doing my own STR self-managing style and I do analysis for my investor clients all the time.

Each unit is 1 bed/1 bath approx 1000 sq foot and shotgun style units.

The big ballrooms with classroom style chairs and tables, a couple of mints and a glass of water, and the audience ooh-ing and awe-ing at some talking head on stage making outlandish claims.

You may want to try a local portfolio style lender.

Should I notify the current tenants in advance of each showing, or would an open house-style showing be more appropriate?

The interior will theme a retro beach style vibe to match the outdoor design.