It can depend on so many things if it was legal or not.
For example if there was no will and he was an only child, it might have passed to him.
It could be that he had ownership before his mother passed.
Did you husband have a written lease?
I sent you an email directly. You should contact the Harris County State Bar-- Lawyer Referral service for a free 30 minute consultation.. They can send you to an attorney that can help you. I sent the contact info in my email to you.
Best of Luck!
legal advice. Please find an attorney in Webster TX who can assist you and make recommendations and then also represent you.
Good Luck to you!
Edith YourRealtor4Life and Chicago Connection
Working always in the very BEST interest of her clients
When his mom died, he was kicked out and the house was sold to his step father illegally
As you believe that your husband was on title, and someone signed on his behalf.
That would be fraud.
But it's likely that the house passed from his mom to his step father on her death.
The step father then decided to sell it.
Clearly you need to get a Real Estate attorney involved, as well as an family Trust and Estate lawyer.
Start with a real estate lawyer.
Good luck, regret to hear about this problem.
Again, please seek legal advice as soon as possible. Let me know if you need a referral in the area you are located in.
Best of luck to you