After giving this vendor a $15k deposit I started to get some weird vibes about them and called the utility company.

@Justin StearnsEncourage you to learn from the mistakes of others - by reading posts here on BiggerPockets about owners not having their expectations met by their current Property Management Company.

You should call your insurance agent and change your policy from replacement value to purchase value.

She's very unhappy and called the same company we use for our survey to request a copy of our report and also to request a new property survey for her home.

You have $1.5+ million home and you're paying $2000 property tax a year, probably a paid off mortgage  if you bought in 1970 for example, and can charge market rate rent (multi units are under rent control with existing tenants, generally speaking, but not SFHs so far) Be really careful with whoever gives you numbers on a spreadsheet whether it's a turnkey company, agent etc. 

I know everyone says to hire a PM company but that is rarely a good choice when you are starting out (at least in my area).

From there, I'd recommend reaching out to some of the smaller property management companies in your area.

I am looking to buy my first rental property in Louisiana and I want to know which homeowners insurance companies do you recommend me.

I'm working for a family run real estate investment company and we're new to the DFW area.

It is managed by a company.