But here's where to start your research in Dallas County: General Procedures for Filing an Eviction for Non-Payment of RentI also can't answer your second question successfully from my perspective.

And yes, it must be filed. 

But if you plan on doing more spec homes, the LLC would likely offer more benefits through legal protections (obviously speak to your attorney about this) and potentially tax savings if you look to file as a S-Corp.

I already filed my 2022 taxes.

This is how you avoid liability, not by filing some papers. 

@Michael Turner Yes, you can combine time to meet material participation requirements if you're tax filing status is "married filing jointly".

(a) Any person offering to redeem must pay to the then holder of the legal title the value of all permanent improvements made on the land since the sale, and if the holder of the legal title cannot be ascertained, payment may be made to the circuit court of the county having jurisdiction of the subject matter when the complaint is filed to redeem.

The property is owned in an LLC, but it's a SMLLC, so it's filed on my personal return.

In 2023 I filed an ejectment suit.

If you filed taxes on that property under ABC LLC you still can issue the K1s and state that there was a sales event.