In addition, the tax assessor site is usually managed at a county level, not the city.

If you buy something in San Diego, now that debt is sitting on your personal balance sheet for 30 years.  

So my question is would it be worth the additional investment?

If there are additional expenses they need to be taken into consideration such as if you are paying for water/sewer, gas or oil, trash, plowing or lawn care, HOA fees if there are any, CapEx, maintenance, vacancy, mortgage, taxes.

When you get out you work for a year with someone to get your master license and then you’re making $80,000 without any college debt.  

Essentially your net return is going to be around 7%. 7% with 90% LTV with a borrower who may or may not have been underwritten properly - If you asked any investor "would you invest in a debt fund that pays 7% net where the loans are 90% LTV" and people would say no way. 

But would love any additional feedback!

Even then I would really run the numbers to see if it makes sense since there are additional costs (utilities, internet, etc.)2.

I believe in the state of SC I will also owe something like 5% or so at year end (in addition to feds?)

If considering a cash-out refinance for another property, ensure you have enough equity after renovations and weigh the long-term implications of increased debt.