It looks as though you are trying to make some tough decisions. I have read the three questions you have asked and I think I may be able to help. There are many senior care options available depending upon the level of care needed. When searching for the best options you need to know the wishes of the person who will receive the services. With the seniors I work with, most want to stay at home for as long as they can. Some are even set on dying in their home. If they choose a facility it is important to look for a place that fits their needs. If they need a social atmosphere look for a facility some commonality with their life, religion, social clubs, or ethnicity.
Additional things we look for are insurance and bonding of the facility, fit for medical needs, adequate staffing to meet needs, and overall comfort level of the person receiving needs with the facility. Level of care is very important. We have placed clients in facilities that we felt the client is left to fend for him self or her self. So if you place a loved one in the facility visit often and unannounced.
I wish you luck in your endeavors, and hope that you find what you need.