It's a simple solution, get more info.

I’m open to any strategies—private lending, local grants I might have missed, or even unconventional solutions.

They provide all the solutions one could ask. 

Quote from @Jeffrey Mair: Hello, I am seeking advice or creative ideas to move closer to the goal of owning a home in San Diego county without the obvious solution of selling off my small rental portfolio.

I believe interest is tax-deductible if used for property improvements or purchases, and it gives you quick access to funds while keeping your stock portfolio intact.Private Money Loan: If you have a trusted partner and terms that work well for both parties, this could be an efficient solution without tapping into your other assets.

•Exterior: Landscaping improvements, including tree trimming and shrub removal.

I’d love to hear how you’re tackling tax prep and if tools like Baselane—or any other solutions—have made a difference in lightening the load. 

@Kash Tacke I'm a big fan of ADU's in general especially here in the mid west, yes you could potentially be on the front of the wave, but housing density is the solution to the affordability issue, anytime you are investing with affordability in mind is a great strategy to me, and sound like there are some incentives or at least supporting winds form the local city, that in itself seems like it would be worth at least approaching an architect or contractor to bid up some plans or concepts to take tot he city.  

It most likely won't help them in this case but let's face it - they're not big on resolving their own problems especially when you're accommodating them.The longer you allow them to live rent-free with no solution in place, the longer they will do just that.

Investors should practice empathy, actively listen to the homeowners' concerns, and present solutions that address their needs.