Figure out what a property would cost per month (spread out furnishing costs over one year, and don't forget cleaning, landscaping if there's a yard, internet, etc.).

Like if you need to return a security deposit or pay a landscaper.  

I don't know what the landscape looks like where you're considering, but it seems like this idea could work.  

You will find a lot of people who have researched the Indianapolis market to death and can give you ALL SORTS of statistics..My one(or two+) words of caution is to do your due dilligence..

Is there anywhere that has statistics on average rental price and vacancy rates by neighborhood in Portland metro area?

I would love to know the statistical likelihood of these things as well.

While software requirements may change throughout a long project cycle as market data is discovered, customer feedback is solicited, the competitive landscape changes, etc., I can't think of many reasons why the requirements for a house flip should ever change mid-flip. 

I would like to build 5 commercial bays for mechanics, construction companies, landscaping companies, plumbers, etc.

Does anyone know of the proper way to market or advertise a lawn care and landscaping company here on BP? 

.- Property tax: $78 per month- Insurance: about $90 per month (I do not have an exact quote yet)- Management fee: $160 per month (10% or gross monthly rent)- Maintenance/repairs (reoccurring): $160 (estimated 10% of gross monthly rent) - Vacancy: $133 per month (calculated at a vacancy rate of 8.33% or one month of vacancy per year per unit)- Landscaping: $100 per month- Total monthly expenses: $1,230- Rental Income: $1,600 (2 units renting for $800 per month)- Cash flow: $370 per month ($1,600 - $1,230 = $370)- Down Payment: $40,000 (including closing costs and cost of inspection)- Cash on cash return: 11% ($370 x 12 = $4,440.