Quote from @John McCarthy: The standard answer is 60 Days, however, your lease should specifically state what your terms are that you both agreed upon when the tenant moved in.

As far as any specific requirement on California I would need to do some research for that.  

You're better off focusing on specific markets, specific neighborhoods, analyzing numbers, and building an ideal buy [box].

This normally would not be an issue but the cost of the water/sewer is extremely high in this area and specifically because the meter is a one inch, the costs are much higher than a normal 3/4 inch on a non-duplex. 

Looking for suggestions on any specific building materials, fixtures, accessories, furniture, and tech for a STR.  

Would also love to connect with experienced Cleveland rental investors.Much ThanksCleveland, Ohio is a great market to focus on for cash flow and specific pockets have gone up 2x and upwards of 4x in the last 5-10 years even!

I get the dreamers wanting to pay to get into development and I can see in some markets this would work were its not so intense to develop but in other markets ( and I am sure the Guru just takes your money and does not get into  market specifics) 99% of the folks buying this will never do  anything with it.. it takes decades to figure this out or U need to be with a BIG firm that has millions upon millions behind them..

I didn't want to list this under Scenario 1 as it's redundant and whether or not having more control over your down payment is a pro/con is pretty case-specific.3. ???

Cash flow has been hampered by an increase in cost of ownership recently, specifically insurance. 

Nore the rent control bullet is CA specific and I do not know how ADUs affect rent control in other jurisdictions.