https://www.wlky.com/article/n...Should increase property values. 

Instead, I would suggest seeing if you can find a 'caretaker' / renter who wants a parking & garden space for their self-contained tiny home on wheels, trailer or rv.  

Can I use prebuilt garden shed such as Tuff Shed?  

If you are wanting to stay within a 30 minute drive of Sorrento Valley I would suggest looking into Mira Mesa, Oceanside, Clairemont, San Carlos, Allied Gardens, and La Mesa.I would be happy to send you the spreadsheet I use to analyze deals if you would like.

having garden style small 600 sq ft units with almost 300 sq ft backyard for each unit in  Tucson .the washer dryer connections are in the open in the back .

top floor is at 1250 and I am going to Air Bnb the garden unit 

I know people with long term rentals in Miami Gardens/ North Miami Beach.  

My HOA dues don't kill my cash flow at all, and I love that someone else is worrying about snow removal, gardening, maintenance of the pool and hottub etc.

To get the fact slap that shows me exactly how I still don't know enough & what more to focus on to avoid as many walks of shame I can in the process.You're right, I'm fresh out the garden so I really don't want my first deal to suck me down a rabbit hole either. 

Absolutely Toni McIntyre, she has helped me with two properties prior and my next one for my family.https://www.bhgre.com/Better-Homes-and-Gardens-Real-Estate-Paracle-42261c/Toni-McIntyre-2920917a