My father in law had parkinsons for years, but his decline was very slow and right to the end he could wash, dress, get food ready and all usual stuff of living. He died 'naturally' of a heart attack.
The prognosis is not good ... but may not be as bad as you imagine.

If you are in D.C.check NIH and support groups around you pm me

Have him join a Parkinson's Boxing club. It will give him folks just like him - to give him peer support. Plus it's proven to be helpful.
[rocksteadyboxing.org]

You're well set if you have people delivering groceries and doing some housework.
I don't know how advanced his Parkinson's is - but you'll also eventually need a home health aid - to help with showering and dressing.

His Doctors should be able to point you towards most of the services. Or ask to meet with the Social Worker at the Hospital he is serviced from. They should know resources too.

One of my sister's has a husband with Advanced Parkinsons so we've been working the issue from the East Coast with her for a number of years now. *She's in CA - so it's hard - we can't really help out much.

Right now we've been looking into a fall monitor.
They now make bracelets that can detect a fall and set off an alarm - and then summon help if need be. (If the alarm doesn't wake the partner for instance).
(They installed a lift to their home - and put in a handicapped bathroom in the downstairs). So he has a bedroom there now. But that doesn't help when he has a fall overnight and she's upstairs.
They had to stop sleeping the same bed because he was kicking her in his sleep.

Also get a really good Medication box - with at least 4 slots so that med time is made easy.
A visiting Nurse can probably teach you both to set it up properly so that medication mistakes don't happen. (That tends to be the reason for a lot of hospitalizations). Along with not enough fluids.
UTIs are really hard of folks with Parkinsons.

Know that there are now brain implants that may help with the tremors. (It is surgery though so weigh the pros and cons).

PM me anytime and I'll help if I can.

Some tips you should know:

1. Type up a list of all his current medications, allergies, and diagnosed problems (be detailed!!) Keep this list up to date!! Have this list in a convenient place. Carry copies with you.

2. Get your paperwork in order: Health Care Proxy / Power of Attorney

3. Decide now what advanced directives you, your siblings, and your father want. What measures do you want performed. The exact paperwork required is dependent up your state. You may want to consult his doctor with these regards. Once those decisions are made, keep the paperwork with him. In most emergency situations, unless the paperwork is present (and current, in some situations), it is assumed that all heroic measures are to be performed, despite what family claims. These advanced directives are what allow providers to disregard what is called presumed consent for treatment.

4. Prepare for the eventuality of your father being wheelchair bound, and perhaps bed bound. Planning ahead for accessibility is key.

5. Consideration for placement into a skilled nursing facility. There may come a time where his needs are too much for you or your sister. Planning ahead now will make that process much easier. As much as you don't want to remove him from his home and place him into a situation where strangers are taking care of him, it may be unavoidable. Planning ahead will be a great help in avoiding some common pitfalls.

6. Consider hiring help, such as a home health aid. There are a bunch of resources available to inform you on what services are provided, what you or your father may need, and how to go about getting these services.

Adjustable hiking poles help prevent falls. Even using one hiking pole makes a tremendous difference.

How to fit hiking poles

[video.search.yahoo.com]

Sorry. None of my friends or family have been thusly affected, except my grandfather was bedridden by diabetes. Grandma took care of him, but she didn't work. I was young and don't know how she survived. I think their kids helped with money.

Oh my nani you must have some help. If you are on the md side of the border you can check with the state.

Can you describe what level of care you are giving him? The opinions and ideas would probably flow better from there. IE, Does he still drive or is he limited to the house only? How long has he had it?

Contact your State...they may know of things like "respite care", and/or people who will come in & make lunch/do light chores, and so on. Unless you ask, you will not know!

Having been the sole caregiver for my grandmother (probable Alzheimer's disease), my primary bit of advice is try to get help, don't do it alone.