Smoker all day. I have some non-smoking leases and will be changing all of them to allow smoking. Makes it real easy when people want to smoke pot and people who want to smoke pot are going to smoke it - inside and not out because it is still illegal here. Because I allow smoking, I don't have to police smoking pot, and policing is exactly what it is. Good grief and whatever. I know how to open a window, clean, and paint. I have insurance if someone burns the house down. Non-smokers have plenty of other options to rent from up-tight landlords who are disgusted with the smell of smoke. Me? I get disgusted with the smell of grease and perfume - to each their own.
Pets? The problem with pets are the owners of pets, not the pets. I have a no pet policy.
And then there are cats. I love cats. I have two. I will never allow a tenant to have a cat. Never. My cats will be exiled to the outdoors the second they think they might want to mark the house. I know how to soothe a cat so they wont mark. And even then, some cats will mark no matter what. That's the problem. I am not trusting a tenant to handle all that. Cat pee does not go away - it's too acidic. Now there's a smell I don't want in my property for the next owner or occupant.
Dog pee is less acidic and dogs don't mark, they have occasional accidents - again the fault of the owner. I have one tenant that has two dogs, an inherited tenant I am making an exception for. She is a great owner and if all owners were like her, I would allow dogs.
Want a pet? Go buy your own house. Barn maybe?
Smokers? Light 'em if you got 'em.
I smoke. I have rented to non-smokers. I've been scolded by them more than once for smoking in their rental unit - lol. Whoops. Sorry. My bad. I do what I can to be courteous, but that habit is a MF.

The pic is for you Joe - lol. Hobbes and Calvin, they're brothers. Never lived a day without each other. They love me long time. They talk to me. I listen and understand. I talk back to them. They listen and understand - lol. Best cats I ever had. Don't even use the box - they go outside. I have a box, and get about one a year in it. Calvin thought he might start marking once, I set him straight on that in short order. Lucky for him, I would have made him live outside if he didn't want to see it my way. I might be able to train Calvin to use the toilet, he is fascinated with it. He knows how to open doors too, he just doesn't have the size to make it happen. Hobbes is like Clawhouser from that movie Zootopia. He is a bit fat and sweet and eats everything he can, but when it's time for the claws you had better steer clear and fast. Neither one is physco. I've had physco cats - not as much fun by a long shot. I like dogs. Other peoples dogs that is. Too needy for me. Maybe if I own a farm I will get a dog.