I recently wrote a blog in which I shared an idea that I think would also be great for you since you want to do a BRRRR and rent to college students.Here's an excerpt:"If you have rentals ... perhaps you can rent by the room by creating a community-style living space where tenants share common areas like the kitchen, dining and living areas but have private bedrooms with keyless door locks.You could even add in workspace areas and maybe designate one room as the "zoom room" for distraction-free meetings and collaborations."

I can capture the current market style at a very affordable price, overall boosting your return! 

Since I do a open house style of showing of the rental and not a “ by appointment “, Is it ok to show the house for 2-3 hours and collect as many APPS from whoever wants to apply?

Take the next sized smaller wad of the same style and substitute it in the recipe. 

I've been through HubSpot, Salesforce, and I've tried using homemade systems on Monday.com and Trello, but that seems to work best for my style of communication.

That sounds more like my style.

Inspect where they live before moving in and look in master closet for mens clothing... 

Toledo also offers varies types of neighborhoods and style properties within those neighborhoods. 

A little about the house, it is a 4 bd, 3 bath, 3000 sq ft, built in early 70s and is built in traditional style.

Just like any product, the bottom of the barrel spec homes that are churned out assembly line style are going to be lower quality than older non spec homes.