Cigarette smoke smell inside house

[Sh T.]

Hi all, I rented my house to a tenant and when I checked her social media, in some of her posts she chainsmoked cigarettes inside the house.At first she was smoking in balcony. I was horrified as smoke smell never goes away. I am planning to return to my house after a year or so and have little kids. 

I checked her background and everything seems okay prior renting my house to her. She had low credit score but her financial statements are solid and have enough money in her bank. I also check her social media prior and saw her smoking in her posts but i never thought she smoke inside the house. I asked specifically about smoking and she lied to me that her daughter is allergic and if someone wants to smoke they will go outside. She also offered year’s rent in advance which I accepted (don't judge me on that as i am loosing my sleep as it is). 

She wants refrigerator air filter changed and my husband went to the house and smell nothing, even he switch on the AC. I can hardly tell her that I saw on her social media about smoking.

The lease says in bold letters that if someone wants to smoke, they have to do outside.

Tenant is only at our house for 1.5 months and she did some water damage to the ceiling. We left a bookcase over there( we first asked if she is okay with that as it was attached to the wall) and she deattached it and mount big screen TV over there without asking us first as lease says if tenant is going to do some modification, he/she asked to landlord first but she never asked.

Please guide me what should i do as lease is year long and i dont know how much will she damage my house . It is brand new house built in 2018.

I am planning to email her about smoking and asked not to smoke inside  and give her warning if we smell again i will terminate the lease as she is breaking rules. Please let me know if this the right thing to do.

Apologize for long post.

Thank you