As you probably know, the amount of effort to manage an A grade property is a small fraction of how much effort is required to manage a C or D grade property.Also, over the years I've greatly refined my systems for tenant screening/management/turnover, and this has significantly reduced my workload....and as others have mentioned, we're lucky to have these types of problems--keeping that in mind is always useful.  

If you’re looking for newer class B multifamily, they exist, but you do have to wait for them sometimes and act fast. you’re looking for C or D multifamily, they are available more often.

And an added fact, I am "boots on", guess who knows the market best, who can tell you exactly what rent projections are, what block is B class, C or D.

I always recommend buying one grade higher than you would at home (so if your minimum at home is C only buy C+ or better).

There’s numbers on a piece of paper that put seller financing in a great light.And then there’s the reality of seller financing being a bet on the buyer managing and maintaining a property well for years or decades while you still have skin in the game.And a bet that the value doesn’t decline by more than the balance of the debt.And a bet that the higher “price” received because of seller financing doesn’t come with opportunity cost in the form of being able to spend or invest the liquidity day 1.And the fact that buyers with seller financing always want better terms than a bank would give them, which is real economics that sellers are far less equipped than banks to estimate risk/reward on.Seller financing is relatively rare.

You could bet on less established destinations but it's much more speculative.

Rather just get a flat fee from a lawyer to write stuff up for me, or bet on an a la carte online medium to curate it for me. 

We have decades to bet on appreciation in more desirable parts of Southern California.  

***Only exception is if an owner has plan & funds to reposition Class D to Class C or higher.https://www.biggerpockets.com/forums/776/topics/960183-what-they-dont-tell-you-about-cheap-rental-properties?

3) How much are you willing to bet on the current tenant moving out on time?