What other red flags have other investors seen that I should pay closer attention? 

I was thinking about going to join Keller Williams or possibly Red Door.

For example, a $5,000 mistake or unknown variable on an $80,000 ARV house can put you in the red.

We have used Soleil Floors in Round Rock numerous times including in our house.They obviously did good work at a good price or we would not have done several projects with them.

I've been a military wife for 10 years now, and my husband is Active Duty in the Air Force stationed at Little Rock AFB and a Real Estate Investor. 

So I am stuck between a rock and hard place with this.Other than that, I have a small credit card that I am working on paying off.

As a real estate investor could be dealing with multiple sale transactions over time, having a real estate agent license could save the 3% of sale every time, however, i read that the seller being the agent could be a red flag for the buyer. 

Save every red cent possible.

Lawns are typically a cement pad with rock or dirt for in and out activity to not tear up grass.I work with a few mobile home and RV combo parks.

I don't submit 1099s without an SSN/EIN because of the red flags and potential penalties, but that's just me and I am not an accountant.