Hi @Sean Boyle, I think you've got some good answers here on every end of the spectrum!

Could a prudent investor go all in on this asset class, assuming the investments were blended across the risk/return spectrum (i.e. some low LTV or debt free, some 1st lien loans, some higher LTV, etc)I'm asking purely regarding a passive investing style, assuming no directly held real estate but rather only a syndication model as a LP.

I recently received a call from a rep at Spectrum REI (www.spectrumrei.com).

I also find investors on the other end of the spectrum who wants the park but not the building. 

On the opposite end of the spectrum, the same floor plan sold for $70,000 less.

In my opinion, if you aren't on the high end or low end of the rental spectrum, you will fare well.

You stand NO chance of getting properties at the lower end of the spectrum ($1.5 million and under) in Marin with contingencies unless you go way over listing on price and even then most sellers will not hassle with inspections or financing unless on a very short fuse. 

The higher end of the spectrum would be closer to a ground-up development of a hotel with a newer sponsor with more risk and a higher cost of equity capital. 

As for what kind of tenants, over the years I've had the full spectrum of men, women, young, old, etc.

As a general rule across the spectrum's of various investing and economics the foundational rule comes to the essential life blood of the system is liquidity in the system, it is the blood that pumps through the veins.