Interest rates are like gasoline. 

Prior to then, we were fully-leaded:  Paint, Gasoline, Water Pipes! 

William Bannister is absolutely correct.Here's some examples of tax sale properties that I've seen:bottom of man-made lakeside of cliff 50 feet tallArmy bombing rangeExpired land lease for river front cottage totalled by flood 30 years agoExpired lease for TV tower pre-cable, that was already removed from propertyLand only with building owned by another party who had pre-paid their lease for 30 years, so if you bought you would start collecting rent in 3 decades.super fund toxic waste siteAbandoned gas station with leaking under ground tanksAbandoned steel millhouse with only 3 walls as the rear wall collasped into back yardhouse on city demolistion listStrip of land 2 feet wide, left over from road widening projectLandlocked residual land from highway projectAbandoned QuarryAbandoned junk yard, various colored ground stains from antifreeze, gasoline, oil, automitive fluids and metal parts.Slag pileChromnium factoryAbandoned building filled with 55 gallon drums of unknown liquidsRavinesWetlandsFlood waysDrainage ditchesSite with endangered speciesGarbage dumpHave a nice day!

Next door Sunoco gas station (mind you, in the days of leaded gasoline). 

That would be the gasoline. 

@Mike Haikin I've never seen septic failure insurance, but that doesn't mean it doesn't exist.Preventive care is the best policy.In addition tanks should be pumped every 3 to 5 years and examined for damage.Nothing except toilet paper down the toilet.No paper towelsNo baby wipesNo tapons, pads or other productsNo garbage disposalNo gasoline, paint, thinner, or any petroleum product.No riceNo coffee groundsNo food scrapesNo drugsNo household cleanersNo condoms (There's a story about somebody having their septic pumped. 

The two zip codes you listed are decent areas that still have room for growth (especially 76227) in terms of it's surrounding counter parts - were you particularly interested in investing in these two zip codes?

The benefit of DAPT’s are that they are less expensive than there purely foreign counter parts, but the downfall is that they fail on effectiveness, cost and control.

As rents go higher than $500, the percentage needed goes down; and the counterpart to that is also true - as rents go down from that $500 number, then you need a higher percentage.So, since your rents are above $500, you should not allow yourself to be misled by trying to hit the 2% rule; stick by the 50% rule for these properties.

I know gasoline use is higher in spring and summer hence upward pressure ....I bought an option (call) on DIG a few weeks ago for $900 and tripled my $$$ in 3 weeks, offsetting the increase a little bit.