"My condition has forced us to relocate and build a home that will accommodate my needs. I hear about government help and tax relief but cannot find anything out there who do I talk to (e.g. attorney, tax advisor, etc). Please advise."
If you’ve spent a lot, have your house appraised before and after the improvements. Since improvements to your home to accommodate a disability generally don’t increase the value of your home the least costly and safest approach may be to have a local realtor give you a before and after valuation. The cost will be modest compared to a formal appraisal, but far more persuasive than ignoring the issue until you’re audited.
For information on government help, you should probably contact the National Multiple Sclerosis Society in your area they have a host of resources. You might also check out their web site. The tax issue is really one for an accountant. Hopefully the above will get you started.