Better landscaping?  

For example, someone told me I should landscape the back yard.  

. $40/door, landscaping - am I missing anything?)

Landscaping would help.

After the land, site prep, set up, and delivery you still have to build porches, driveways, landscaping maybe, etc.  

I should have added I guess that the rehab costs (roof, deck, floors (refinishing), kitchen (cabinets/counter/floor), bathroom (tile), deck, AC unit, water heater, some minor modifications to the interior space, complete painting on interior and exterior, new front and back doors, some landscaping) would cost about $40,000, which would put me all in around $90,000.  

The long term goal is to build a network inside a large buy/hold portfolio to be able to set up other enterprises and P.E.O (billing, land scaping, rehab etc).

A customer called my landscaping company looking for a quote on some landscaping rehab.  

@Tushar Shah @Ian Ippolito's site is an excellent resource for navigating the real estate crowdfunding landscape; I learned a great deal there myself as someone new to real estate (with some experience in crowdfunded startup and P2P loans).

But I can tell you that if you are a first-time landlord the major benefit to townhomes is that the HOA is likely responsible for major structural issues, yard/landscaping/driveways, all significant plumbing, etc.