You'll be running the risk of getting bad reviews and that will tank your business.

Your tenants will flush whatever they want, look up what bolimia does to septic tanks and imagine that happening to your septic (it happens, I know from experience!)

@Jeremy Trier  Is the oil tank being used or not? 

HahaI must add my girlfriend drives a Prius and I can confirm she's made a couple tanks of gas from bringing the empties in for a refund.  

Personally, my ideal strategy for noobs would be waiting until the market tanks, buying 1980s beater SFRs from the bank (REO), tile roof, stucco, 3br 2 ba, ~1400-1600 SF, no HOAs, smallest, crappiest, least expensive house in a good neighborhood ... moving in and fixing up, then after ~2 years turning it into a rental if the market is bad or selling if the market is good. 

I just have to make sure utilities and city water/sewer are available on that parcel I am not doing the well and septic tank routine.

When the economy tanked I had to switch from RE full time to getting a full time JOB.

One bad review could single handedly tank your rank on the algorithm and drastically impact future revenues.I'd update the listing description to make the pet policy more clear, replace the bed skirt, and move on.

the website was called property sharks.

So for example, the Comps of House A will be $38,000, yet the seller has the home listed for $50,000 and the home needs $6,000 in Rehab work to be done (hot water tank, windows, etc).