A Civil Engineer will be able to tell you what will be required in the way of utilties installations, curb, gutter, sidewalk, fire hydrants, etc.Once you have all that information, you will be in a better position to move forward.If you're not experienced, you definitely want to find someone that has done it before and can manage the project for you, as any mistakes can be very costly.In hot markets, there's probably developers out doing the same thing, and land will be hard to find.

Imagine if a window unit falls out because of a poor installation and hits somebody on a sidewalk.

I am looking to purchase a 54 unit MHP with 26 park owned homes, the property has sidewalks, paved roads and parking spaces is it worthwhile for me to look at a cost segregation study?

Also this area is changing so rapidly, you'll have to have someone do a street by street analysis since theres so much demolition, repaving of streets and sidewalks and some new development taking place its hard to say the status without taking a drive through every month or two... 

Sidewalks, and tree lines streets are big deals for us.6.We target higher-than-average rental units (60th percentile?)

However, an architect advised me to get the property surveyed to see if an attached ADU is feasible or if I can push the fence closer to the side walk but it costs $3000.

For example, road construction will cost a certain amount for the ground work and pavement, but if your zoning/planning board requires you to add curb and gutters and/or sidewalks, the cost could almost double.  

So unless you are getting into developing I would let the engineers handle.Storm ponds, storm sewers, joint access driveways, cul desacs, sidewalks, fire hydrant distances, road entrance distances, minimum lot size relative to city setbacks ( say 5,000 sq ft.

Cut grass in your neighborhood.Shovel snow from sidewalks and driveways in your neighborhood.Sell hot dogs at the swap meet with your parents help.Be a TV Actor for Disney or something like that.

The front sidewalk may be the responsibility of the homeowner as well - I need to check with the local municipality.