@Jake Hobson
Some of the advice given I agree with, and some I don't. But here is a list of Bexar County Tax Exemptions https://home.bexar.org/tax/PropertyTaxFAQs.html
They fall under general categories of Homestead, Disabled, and Senior Citizen. There is no property tax exemption that I am aware of for having solar panels or any other eco-friendly modification. I think there is/was a federal tax credit or deduction? Also the local power company offers a rebate (or did at one time..I'm not sure if they still do). Not to make this thread totally about protesting property taxes, but you can and should do it every year, and if you have evidence (comps, photos, etc) you will usually get the increase lowered or completely vanquished.
Everyone has different goals. What are yours? You mentioned creating cash flow in your OP, so is that your goal? If so, then someone telling you "who cares about" cash flow is advice that ignores your individual goals. Some people are fine with breaking even, but are you?
What you're trying to do is convert your homestead to a rental which is mostly what I have done, so yes, it's totally possible to create cash flow in this market. I buy off the MLS with traditional financing, so maybe I'm doing it "wrong," but it's working for me, and can for you. I will agree everything under $200K which is where the best 3/2 rentals are priced are selling fast and at or above list price--that just means you have to be decisive and have your funding lined up before you even set out. I agree with @Aaron Bihlabout watching your rental price point. If your looking at houses that would have to rent for $2000, you need to look elsewhere. That price point is a hard sell in SA.
If your primary goal is "cash flow," then you can create it by putting more down and/or getting a great rate. The more you put down, the less rate of return you get, but it can create cash flow where there was none before. Some find that thought to be blasphemous, but different strokes for different folks.