A small business in need of huge help (money related)?

I have been training in Taekwondo since the age of 3. As I am now 16 and the highest ranking student the current owner is giving me her school. The building we are in is very old. The windows do not keep heat in or out, lighting has become outdated and we can no longer purchase the lightbulbs after this year, roof needs completely re-done and last but not least the school district/city pesters us about the traffic flow. This building is also home to the Dynamic Dance and Tumbling Academy,Weight Watchers,Girl Scouts,Rainbow's End Daycare,Bridge, a small church group,and various local artists. None of us are able to put forth the funds to fix everything or even most of it. We also can't apply for grants because we do not own the building the school district does. We need a group of people willing to donate or provide large investments with a slow return. I am hoping that there is a group of people willing to help us get out of the building or renovate it in order to stay. Please leave nice comments thank you very much.