Landlord tenant question?

We rent, and have had the septic sewage back up in our toilets, and both showers/tubs. When it happened the first time, they got us a room for one night. But the next day they said they didn't want to pay a second night, and wanted us to go home before it was fixed so we could lay out rock salt for the septic company, so they can make it up the driveway. That was hours away, so we got the room for one more night. Then we told the property manager we did, and she was more then happy to get it for us the second night too. (we thought it was because she was nice, but realize now its to save their butts) So they told us they was just going to "band-aid" it so we can use it for a bit. (drained it only) But we have to conserve our water usage. So we delt with it... no problem. Well for about 2 weeks. Now its worse, and they just want to come pump it. While we sit in raw sewage. We can't take showers, wash dishes, wash clothes, or even use the bathroom, until they pump it, and then every 2 weeks the same problem. Our lease is up at the end of march, (2011) and we think they are just going to have us deal with this by draining it every couple weeks, till the lease is up. Then not let us renew. So on a hunch we asked the property manager if we would be able to renew, or should we start looking for a new place. She said "i wouldn't stop looking". So we told her that from all our research online, EVERYTHING says to call the Health Department ASAP, And talk to a lawyer. And she started back pedaling it seemed by saying... "Ohh you don't need the health department, we are going to send someone to pump it right away'. We now understand that they are trying to pull on over on us to save them lots of money and problems, and we want to protect our selfs. But we don't have the money for a down payment (retainer) for a lawyer. What are our options? And what should we do? We took pictures of everything. Even our pellet stove fireplace is bad! they put in a wood stove fireplace inside of the opening of a old real fireplace. All the wires come out from the front of the fireplace so they can be plugged in. As well as the control panel for the pellet stove is all unscrewed because it wont fit with the old fireplace brick behind it. All of those wires are exposed also. And the end of our house isn't even on a foundation. The corner of the house is all being held up by a 4x4 chunk of wood thats sinking into the ground. So the wall on the inside is being pushed about 3 inches into the house. What should we do? And who can we talk to about this issue?