Start sending the proper notice allowed by law.

Get familiar with the laws in the state you will conduct business in.

I'd encourage you to be tight with your lease & learn the local laws so you are compliant.You will definitely be a young landlord but how you handle yourself will set the stage.

How legit is their practice if you have an idea about it?

Based on IRS Private Letter Rulings (PLR 200805012 and PLR 200901020), development rights can qualify as like-kind property for a 1031 exchange if they are considered interests in real estate under state law.

What do you do to ensure that the tenant is responsible for security deposit disputes since that is the largest reason for owner lawsuitsHow familiar are you with the newly changed laws that can affect you the owner if they are not used correctly?.

Also look at the rental laws in the areas you are considering, just so you understand what you are getting into and whether you are OK with them or not.

I will provide some thoughts on the San Diego purchase- virtually all high LTV mls purchases since rates started to hike have negative cash flow at purchase- historically great appreciation- historically great rent growth but recently flattening- prop 13 is great benefit for long holds- laws keep getting less LL friendly.

Quote from @Frank Barletta: It is more cost-effective and practical to install a large-size TV and get the Nintendo, Super Nintendo, and Sega Mini consoles.It comes with games preloaded, legal, and each to swap in case something breaks. 

Plus, compared to other parts of Florida, the Panhandle is still relatively affordable, making it a great option for first-time investors or those looking to diversify their portfolio.Another huge perk is Florida’s no state income tax and landlord-friendly laws, which make it easier to manage and profit from rental properties.