My Park Owner Won't Fix up the Streets in My Park.

Has anyone ever dealt with a "slum landlord"? My situation is this, I live in a mobile home park and it in the last year the lot rent was raised due to the parks expenses going up (economy). Anyways the streets in here are just filled with pot holes that in some spots you can not even avoid them. A few of them that were at the entrance of the park were filled like three months ago, but still then nothing has been done since then and some of them if you hit them sounds like it is gonna do some damage to the care, and not to mention we have many children that live in here and ride bikes, and play street hockey etc. On top of this the guy that is suppose to be cleaning up the park and do repairs etc lives next to the office and has his stuff shut off and is has cord plugged into the office to get electricity to his house, so basically we are paying for his stuff. The past year all that has moved in here are parting individuals that has no respect for their neighbors. People would label these individuals as trash. One of the individuals has 29 write ups in under a year of being here and that is it no eviction or nothing, and I find out by my friend in here that this individuals house was raided for drugs last week. Nothing is even being done about anything, and we have had so many managers and none want to do their job. I know a simple solution is to move in which I am, but what about the people that cannot afford to move at this point and have to deal with this stuff. I know a few really good people in my park and they do not have the means to move. Any ideas would be great, cause my friends need to know what she can do legally.