Hi Derrik,
I'll try to fill in as much as I can from my own personal experiences.
I had hardwood flooring installed in one of my homes and had the same concerns as you.
Not sure how the rental market is in Columbia, but here in Orlando, it's pretty crazy as you can list a home to rent and have multiple applications by the end of the day. So if the rental market is hot in your area, this means you can be much more pickier.
My tenants have two labador size dogs. I charged a non-refundable fee of $250 per dog and they quickly paid because most other places either weren't as nice and/or didn't allow pets. You could charge more or less. I used the $500 dollars to pay for a home warranty plan for the year. Now your AC/Hvac, plumbing, things like that are now covered.
Cash flow of $500 is pretty darn good. There should be some additional funds to put aside for contingencies. For my homes, I put 20% of my cashflow into a continent account.
You can always hire a property manager and just use their services to locate you a good tenant. You can omit the monthly management services and do it yourself. Easier to manage a good tenant than to locate one in my opinion.
Hope this helps