Cactus, first you probably should fill in your profile to let everyone know what part of the world you're in. I've never owned mobile home lots for rent, but I'm now living in a mobile home park, and am familiar with lots of others. And just as site built homes and lots vary, so do mobile home lots. How many lots do you want to make? You say you have water/electric; how about sewer? No gas; are you going to allow propane tanks, or total electric only? Is telephone service, cable TV & Internet service available? Would you expect single wide only, double wide, triple wide? Are you going to fence lots separately, or allow the tenants to do so, or prohibit fencing as many do? 60' x 100' lots are nice, but many are much smaller. What kind of streets, street lighting, parking areas for each site you plan? What kind of mail boxes and/or mail center will be used? Will you only have a lot for people to live on, or would you plan swimming pools, recreational buildings, dog walking areas, playground and/or athletic facilities? I think most mobile home parks now have very lengthy, detailed rental agreements, outlining what kind of vehicles are allowed (none over 3/4 ton where I am now), number of dogs allowed, prohibiting certain breeds of dogs, such as pit bull, doberman, german shepard, rottweiler, etc. Are carports allowed? Are storage buildings allowed, and if so what size and/or type of material? In other words, it can get as complicated as developing any other residential area, and this post certainly does not cover nearly all the details.