It is important to understand what benefits your loved one qualifes for to include VA benefits some Veterans and their widows may be eligible for. While an Elder Law Attorney might be a good resource it might be a good idea to start with the Area Agency on Aging. Before reaching out to them be sure you have necessary information about your parents such as financial awareness and as well as information on their medical needs, per the physician. Resources vary from state to state so it is a good idea to contact your local agency. You can find their number here http://www.n4a.org/
A Place for Mom also has several Community Relations Advisors who work closely with your local resources in their specific communities and may be able to refer you to an Elder Law Attorney in your area if you are specifically needing an attorney.