The problem with your idea is reimbursement. Many families could not afford to pay an RN to check on their loved ones. I don't think an insurance company would pay for such a check up unless you were a nurse practitioner (and then I beleve it would have to be in response to an illness since they are "supposedly"
being well cared for by the nursing home.
Also, you may well have a problem with the nursing home itself since you'd literally be checking up on them. Logistically, it would b difficult and require travel time and expense and enough patient load to justify the trip (i.e. more than one pt per home).
I am a 53 year old student nurse with 25 years of business experience and bachelor's degree with a concentration in business. I too am planning to make nursing a business but will focus on reimbursable services. You might begin planning your venture by researching what different nursing/care services are insurance paid or have the potential. Its pretty involved and detailed but may guide you in a direction with potential for profit and growth.
Also, consider overhead and what amount you will need to operate for "X"
number of months/years while you build the business base. Decide how much you must have considering your present lifestyle, bills, etc. Factor in the sevices of a good accountant/consultant to structure your cash flow. Office set up is expensive , so are support personnel. Consider partnering with other nurses.........work prn to get you through. Do LONG term planning and statistical analysis of the market before you jump into anything.
Research your idea. See if its been done before. Read about business successes of other nurses in other areas of the country. Its all about doing your homework.
I could go on, but you get the picture. I think nurse entrepreneurs are the coming thing and there are so many areas of true shortage and need. We just have to discover where the demand is (the need), what the supply (competition) is and How WE GET PAID and go from there.
Good luck. Hope this helps. God Bless.