Kudos'
Have you volunteered in shelters before?
Here are my tips and hints-I've been involved in many successful and non-successful shelters.
First go to the petfinder.com library and READ READ READ
Set up your non profit first. Then apply for charity 501C. Don't procrastinate-do it right away.
Keep receipts for everything. Get volunteers asap to help coordinate volunteers.
Do NOT EVER take on more then you can afford out of pocket until you can secure funding. Never rely on things working out-they won't.
Get either a vet to offer you low cost spay/neuter or make a contract-No responsible shelter adopts unfixed animals.
Get signed on with petfinder.com right away.
Get a website. Many companies will pay for this and design it for you for the ad space-you don't need any skills just email and ask web design companies!
The easiest set up is a network of foster homes, especially if they can pay food and care on their own (mind you will need to cover incidental vet costs)-they can do driving and arranging to meet prospective homes.
Network network! Connect with other shelters and get tips and tricks.
Get on the TV and in the paper-do it regularly. This gives you exposure and legitimacy. It's easy they are always looking for animal stories.
Bottom line-biggest tip-don't bite off more then you can chew-and don't rely on others especially volunteers. Their heart may be in the right place but they may not be reliable. Only do (at least for the first three years) what you can handle on your own. My biggest tip-only do what you can do yourself