I have had the RE bug since I was young but due to life circumstances (school, marriage, kids, etc) I haven’t been able to get started.

You don't even have the benefit of the law to protect you in a basic marriage arrangement.

Them not getting along with each other has direct impact on me doing my job, for example, now I have to individually inform all roommates to make sure I can come by next Tuesday at 10am to do some repairs, because Brenda doesn't talk to Doris anymore LOL.I do understand these things could happen in a family too, that a couple could have marriage issues and have fights and I would have the same drama, but yet over the years I have never had any drama when renting to a family, whether it is a couple with or without kids, sisters, BF/GF etc...may be it's just luck.The latest is the annual lease is up. 

@Ronald Rohde You would think after 33 years of marriage I would do a better job of communicating but this has made me do better.

Because even if ALL of that is met, if things go south, the last thing you need is an unhappy wife who was never on board in the first place.A small example, but something I always think about in my marriage -- my wife and I were (many years) ago not yet engaged, but decided to get a dog.

@Jeff Quinlan a partnership is a lot like a marriage. 

Partners are a great thing, but like a marriage, communication is key, and planning for the hurdles when you both have level heads will make life easier in the long run.

We rented to a young couple we go to church with who moved in right after their marriage and they always tell us how much they love their "little house."  

After a few years of marriage, we refinanced it to a 15-year mortgage and moved to another house (upgrade).

He mentioned that the debt was accumulated from his first marriage, and that he has funds in his 401k and savings.