As far as picking a neighborhood, I would consider the vacancy rate and average household income.

Never assume, always ask; even during hot RE market.

If the house has no gas that means no hot water so it should not be habitableYou should let your tenant know there is an issue with the gas line and will require major renovations and they will be required to relocate.

Between growing up in these areas and my work experience going into 5-10+ different households a day I offer great market insight.

The city’s vacancy rate has plummeted to a mere 1.4%, the lowest since 1968, amidst a stark imbalance between housing supply and demand.Despite adding 60,000 homes, the population surge of 275,000 households has left only 33,000 rental units accessible.

I've had someone from the state & a plumber go out & confirmed there is hot water. 

., CBRE, Colliers).)Affordability: Ensure household income has grown at least 1% YoY for the past 20 years.

Such as a hot water heater replacement, flooring, HVAC work etc.  

All of those are rather strong areas with a lot of pent-up demand for rentals and a strong average household income to make higher-end properties pencil.

@Mahbod Norouzi as Dan stated, any of the Austin suburbs are still going to be too hot for cash flow with a traditional down payment.