For example, if you’re into turnkey properties, how much cash flow do you need for a deal to make sense for you?

It cash flows without the utilities split but I am planning to hold onto for a long time so splitting the utilities seems to make sense.

I think initially it makes sense to find properties that already have finished basements, in-law suites, etc. as converting those spaces to ADUs will be inexpensive and create a significant amount of rental income ($2,000/month+ in most areas close to the city).

Just run the numbers and make sure things make sense.

The HPR thing really annoyed me, it makes no sense to me.

If the trade value of an old shopping mall is less than the build cost of a new storage space or warehouse, then it doesn't make sense to build a new storage space or warehouse, just buy an old shopping center.

If they are good, they don't have a problem finding work so doing your project at a deep discount makes no sense for them. 

Not sure it makes sense to build now

For rentals, would a single floor or two floors makes sense? 

Finally from a purely from a cash outlay prospective short term, you could rent a house with roommates and your payment would still probably be Lower than house hacking because rates are so high, over the long period 5-10 years obviously it would cheaper ti buy, hope that makes sense