If you're looking for the all-in-one I'd go with a PM software (others have suggested some) and do what you can with it.Then, as you grow further, look at more sophisticated/expensive options.

A pool can be a big liability, but can also be a bonus for the right tenant that is willing to pay extra for that amenity.

You'll have all amortization options, but the most common will be 30 year fixed and that's generally the recommended one. 

The ability to do cost segregation and bonus depreciation3.

I think we may see a return of bonus depreciation, but I doubt that it'd come without a cap of $1-2m, and a repeal of Sec. 179.

They should have local options with teams they approve of. 

A good real estate accountant can save you thousands of dollars by leveraging entity selection and formation, tax deductions, cost segregations, bonus depreciation and tax planning.I recommend finding an accountant who specializes in real estate taxation, business taxation, financial planning and tax planning.You may want to consider working with your accountant remotely to expand your options.I would also recommend looking for a accountant willing to work with you throughout the year.

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Aka fraud.Accelerated depreciation, bonus depreciation, Section 179.

There aren't many "short-term, get rich quick" type investment options in SoCal today.