also, they can list the property in different platforms for a small fee!

If you remodeled, added a room, replaced a roof, painted, boosted the curb appeal, etc. that's a different story.

Look at buying my first investment property (probably a house in the 100-150k range) and begin looking for a tennant.I can imagine there a lot of different theories/ideas with what one could do here--I am just curious to see what other people think.

This is extremely situational, and it depends on many different variables.

We do things a lot differently than they do up in Dallas.

In all that time I’ve only really had one disrespectful set of tenants who were significantly different from the mainstream both culturally and in terms of their religion.

Cool to see but could have done that at my own pace..... the property tours are informative and show the different levels of facilities... 

However, they approach financial health from different angles.The 50% Rule is a quick estimate that suggests operating expenses (excluding mortgage principal and interest) will roughly equal 50% of the property's gross income.The DSCR is a more precise calculation (Net Operating Income / Total Debt Service) that determines if a property generates enough income to cover its debt obligations.Deal example:- Class C middle class neighborhood- 4bd / 2ba single family house- ARV: 190k- Purchase: 105k- Rehab: 35k- Market rent: $1,400-1,525- Section 8: $1,475- Property manager: 10%- Taxes: 125 month- Insurance $1250 yr- HOA: $55 month- purchased and rehabbed with all cash.

Your not correct under many different circumstances.First property tax is 1.1% (fairly safe) with 2% annual increase (prop 13).Next expenses include a lot more than property tax and interest. 

Post the listing, Any local investor would be  able to tell you if you were fleeced in the acquisition, Birmingham is notorious for being different street to street. 500k houses one street over from 100k houses.