I like 6 inch MDF eased edge base.

If your'e considering purchasing a home with foundation issues, I'd get an estimate for repair, anticipate plumbing repairs (post foundation repair) and take a look at the degree of the repairs; for example if you're adjusting the home an inch or so throughout it may be something I would consider, however, if you're dealing with a cracked slab and/or adjusting the home over 3" then you may want to rethink. 

Meaning inspect every inch as inspector would?

All of those help move the numbers an inch or two but you are on a 300-yd football field.  

There are two ways to go about marketing/advertising your business...You can go a mile wide and an inch deep, which would be marketing large scale such as blanketing an entire neighborhood with direct mail, door hangers, etc.

When we got upstairs, it was so dirty I almost hired a cleaner because every inch of the unit was covered in dog hair, including the inside of the fridge.

I've got roughly a 1 inch gap between a tile bathroom and LVP hallway. 

I only ask because it seems you're under the impression that if you give them an inch, it stops at an inch. 

I know the turnkey strategy is less threatening, but honestly, I don't think you're going to learn that much from doing it (in terms of inching closer to doing BRRR).

We learned every inch of how to rehab while working with this other investor.