The property has an in-law suite that we currently rent out.

Be sure to check your rental agreement which may require that your notice to end the tenancy be given on the first of the month or on another specific date.In some situations, you may be able to move out with less (or no) notice—for example, if your landlord seriously violates the rental agreement or fails to fulfill legal responsibilities affecting your health or safety.Secondly serve the 3 day notice.Serve the notice as follows:The Notice to Vacate must be in writing, and include the following information: date the notice was served on the tenant(s)name(s) and address of tenant(s) rental unitthe reason for the notice (that the tenant failed to pay rent for a specified period of time)a statement that the tenant has three days to move out, including the final date and time by which the tenant must be out of the propertyan ultimatum that the landlord may pursue legal action (an eviction lawsuit) if the tenant does not move, anda statement specifying how the notice was given to the tenant, either by actually giving the notice to the tenant or mailing the notice

The first pillar is avoiding unnecessary and risky activities (don't drink and drive, insurance generally won’t cover your poor decisions) and take good care of your investments(maintain your property, etc) - these simple steps will help you prevent lawsuits before they even occur.

It's the only way to avoid a lead based paint lawsuit.

In the event of a lawsuit by having it in your own name you will have exposed your personal assets to litigation.  

Now he, his management company and the complex HOA are in 5 years lawsuit and no bank want to finance a purchase in this apartment complex.Can you send me a link to the owner's portal?

It’s a required precursor to an Unlawful Detainer (eviction) lawsuit and what you’ll need to go through if the tenant still doesn’t pay up by the end of the 3 days. 

If there is a lawsuit down the road, then the Land Trust would dissolve and you would owe the foreign filing fee, which is quite uncommon.

The home I'm analyzing now is 1235 Plantation Dr, Dickinson, Tx 77539 (Last time I tried to link to something it didn't work so I apologize if this one doesn't either) What I'll be looking for when I'm actually in the market is something cheaper (hopefully with built in equity) with a mother in law suite that I can live in while I rent out the main household.

Many are 3/2's with an "in-law" suite.