Are there any we are still doing it this way but don't see the trend continuing much longer?  

we are building one on our property and have talked to a couple people.   

We are seeing most things traded off market.

Even best case scenario your tenant is super clean, there is still wear and tear on everything that you will have to pay to keep up with.

We sort of "lucked" into the first ones but now we are actually having to plan out purchasing our first true investment property.

@Randy E. we are not planning on purchasing any at this time, they will always be an assignment.

We are currently renting our home in McAllen, Texas, but this time with the help of a property management company.

Sure, we are out an option fee that way, but that's less than a major foundation issue, for example. 

Every time we do we regret it because that means that we are putting someone into the property that doesn’t have the resources to save money and pay the option fee.

We are planning to house-hack when we move and use some savings to do some flipping to fund some brrrr deals on some smaller mfr's and scale up from there.I almost forgot this is just an introduction.