One, who was a girl was big into Tupperware, and the other was into landscaping but was not doing so well.  

Better landscaping?  

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

I'm looking at a potential investment property that has 3 units but one of them is a garden unit that is not officially registered (it's listed as an unfinished basement). it was a front and back door with 2 bedrooms, a kitchen and a bathroom so I'm assuming it just needs to be registered as an official unit.

Better at woking in my garden, then on a computer.

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

@Galen Bricker At first look I would suggest some plants in the front garden to soften the hard brick area on the right side of the home.

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.  

Especially with the sale of all the flips that are in progressDeal SynopsisAlbany Park 4-Unit Acquisition: $495,000 Down payment: $100,000 Gross Rent: $49200 (I live in one of the units) Vacancy (5%): $2460Expenses + Capex: $14760 NOI: $31980 Annual Debt Service: $30,000 Annual Cash Flow: $1980 (my unit can rent for about 1K a month once I move out which adds over 10K to cash flow)Albany Park 2-Unit + Garden Acquisition: $375,000 Down payment: $13000 Gross Rent: $33600 (Living in the garden unit) Vacancy (5%): $1680 Expenses + Capex: $10080 NOI: $21840 Annual Debt Service: $20892 Annual Cash Flow: $948The building appraised for 25K more than purchase price (with FHA appraisal which is usually stricter) so once I hit six months I will refinance and remove PMI which will add $292 a month to my cash flow.