What Community is it? Let me know. Contrary to what some other agents think, mobile homes are a vehicle and usually are not considered real property unless they are being sold including a parcel of land. Therefore, the usual housing laws and real property laws don't apply or are modified. Attorneys do not do closings on these as a rule. Florida and other states all have different laws regarding this. Many of the parks in Western New York want to control WHO is going to live there have a few different rules. One park in particular that I had to deal with about a year ago had an over 55 stipulation. However, because of some complaint that was filed previously (as I was told), they had to make the provision that "At least ONE occupant must be 55 or Older in age." They had other rules that allowed them to not approve a particular buyer. One was that you had to have a favorable credit run and, there was a requirement on a background check on everyone who would live there.
I found the starting source to make an inquire was the NYS Attorney General's office and the NYS division of Human Rights. You may also want to contact the Fair Housing Divsion of HUD.
All I can tell you is that we had a very difficult time finding anyone who would even talk to us at these offices about these matters because it was private land.