Perfect Arrangement

I (34) bought an old building and had no immediate plans for it. I saw it as a profitable future project; all the future building projects were moving in that direction. It was in a depressed area and was cheap. I bought it on the spur of the moment, no site inspection, just recognized its potential. From its auction description, it was a wreck. After everything was signed, sealed, and finalized. I decided to inspect my purchase; I visited on a Saturday afternoon. The building looked securely locked up at first glance, but looking closer, I saw that a door was dummy-locked. It had a rusted padlock and chain, but one chain link was just a hook. That made it look secure; I entered and found that someone was living/squatting in the back of the building. I was going to call the police, but I noticed female clothing. So, I decided to see who was using my building. I waited outside in my car until she returned. After she entered, I went to confront her. I found a mature woman who I found out was 51, living rough in my building, working spot jobs just to get by. She was short at 5'4", slender, and okay-looking for her age. She had nowhere else she could afford to live. She had cleaned up the area she lived in and done cleaning work to survive. I'm not much of a ladies' man myself; she saw me looking at her breasts. So, being desperate, she offered me sex as payment in return for letting her stay there. I was inclined to accept, but decided on a better solution for us both. I offered her a full-time job as my housekeeper, with sex as part of her duties. I didn't want to come back for sex each week, and having her living with me meant more sex. She thought about my offer, asked some questions, then accepted the offer. She packed up her belongings and traveled back to my apartment with me. On arrival, I showed her the spare room, then suggested we shower together and then have sex. She was very willing to please me sexually, and it has been six months since she moved in with me. We get on very well together; she willingly provides me with sex. Also, she isn't as afraid as she was at our first meeting. Her confidence has improved greatly; sex between us is now for our mutual satisfaction. She can refuse if she wants to, and has done so a few times. But I do have sex about once a week, sometimes more.