Cons: Approximately $500 HOA fee even for small units, risk associated with renting out my primary residence, the need to find cleaning and management while I'm away, potentially less appreciation.I'm thinking about buying a property by the end of this year in the $300k to $650k range and putting down $30k to $60k to keep sufficient funds for further investments. 

I agree that appreciation alone isn't sufficient and I also invest for a health cash flow.

This is particularly advantageous for investors who might not have sufficient equity in their existing properties or prefer not to tie up their assets.

Is income sufficient enough to look past credit score.

This is due to the "self sufficiency test" saying that 75% of your monthly gross income from all units must exceed the approx total of your PITI (monthly payment). 

Or weed killer every year as another option depending on cost to remove and reinstall  Weed killer yearly would be sufficient to control the weeds (without a barrier)?

It's great to build wealth, if your job does that sufficiently and your just trying to protect your wealth against inflation then stocks would make sense to me.

Those that either can't access their retirement account without penalty or have sufficient assets have one set of needs, while those that are trying to live off the entirety of the assets...My two cents is that depreciation is potentially "oversold." 

You've lived for a while, common sense is usually sufficient to solve these issues.

Yes, Quickbooks Pro is sufficient and what I use.