I'm happy to refer you to a company that helped setup mine.

I dislike they refer to it as Airbnb calculator.  

Their character, their payment record, how well they take care of you property, etc all these things are for you to discover with your tenants and build trust between each other. 2. when it comes to screening, you must check their credit, their paystubs, their employer and landlord references, their criminal background, I also get a copy of everyone's photo ID.3.

Do you check Landlord references?

If you’re referring to the “newbies” with $10k to their name that watch a video by Pace and get excited and pay for joining, go out with their last $5k and do a sub to with a “desperate” homeowner without revealing all the possible consequences (because they are unaware of the consequences through lack of experience and lack of knowledge and or choose not to inform the seller) then I agree, it’s probably going to turn out badly for all concerned.If on the other hand you’re referring to a seasoned investor with excellent credit, significant cash reserves, who wants to add a property to their portfolio without going through loan qualifying, and can pay enough to give the seller “walking away” money because of the low existing interest rates and or, and is dealing with a informed seller, then I find nothing wrong or negative about the transaction.  

you can PM me I'll refer you to my realtor.

Get references, confirm their systems and SOPS are in place.

Quote from @Jed Butikofer: @Henry Clark When you say Texas property tax sales are you referring to land flipping?

Hey Jessie --what other passive RE models are you referring to?

When vetting contractors, check if they’re licensed and insured, ask for at least 3 references and call them, and get detailed written estimates and timelines.