Of those which would you say has been the most fruitful?

One was bacon,lol, the fruit breakfast really threw me off (teasing).

Get rid of the existing tenants that are most likely paying below market, poorly screened, and bad for the business.I would pick 1-2 rentals that are "low hanging fruit" and easy to renovate.

That would be a problem.But as long as the grass is cut, trash is put out, and junk doesn't pile up outside, I agree with the majority - let him stew in his juices.

The tree keeps growing and producing more fruit(money) over time and you still have the tree which is likely worth more than when you acquired it.You have to make sure it is watered and fertilized and maybe pruned occasionally.

Are you able to 1031 their money into another deal, where you can juice those returns even more and continue making their money work for another few years?

A lot of the time someone successful in the real estate business does not have a TON of spare time to spend educating someone newer so you need to find ways to create value for them in order to build a fruitful relationship 

From the experience I have as a wholesaler I've discussed the % of the deal that my investors look for but what I find is that they're always in search of that unicorn 50%, 60%, or even 70% deal these days when there are so many low hanging fruit ~75% deals that can still bring a really great chunk of change on the back end.

Attempts to get a hold of the buyers haven't been fruitful.

All the easy fruit is gone and I do piss on myself because every property I bought and fixed up is worth millions today, should of kept one.