Private room shared bathroom

My home is a 3 bedroom and 2 bathroom house with a fenced in back yard. It is located in a quiet neighborhood, near I 35, city transit stops, shopping and restaurants, I am currently renting to a 20 year old, with whom you would share a bathroom. She works two jobs and is a very nice and responsible person.
The rent is $700/mo and can be paid in two equal payments at the first and middle of the month. The utilities run about $150 for each of us, each month. We share the kitchen and the kitchen responsibilities, like taking out the garbage and sweeping, buying cleaning products. We each do our own dishes and clean up our own messes.