Depending on the project (and business model), you can often find other people's leftovers.  

It should also be embedded on the contract what make and model he is to install.

I have bailed many of them out over the years when some guru gave them a model that turned out to get them in deep kimchee with regulators.

We are looking at a model that charges a pet fee monthly rather then a one time deposit.

However, I used to build mortgage/loan pricing/underwriting models, elimination of PMI definitely comes with a greater risk for lenders, which translates to higher interest rates, with everything else equal.

There are certain loan programs out there that offer DP assistance (ex.

I have the Honeywell model that runs about $225 from the big box stores and love it.  

My total annual expenses will increase over time with repairs and cap ex as the property won't stay perfect forever, around the 3 year marker I will start to see my expenses eat into the cash flow to the point where my Total Annual Cash Flow and Cash on Cash ROI will start decreasing.

Their business model is 100% focused on commissionable publicly traded assets.  

Here is a list of the common apartment expense categories you will come across when analyzing deals:Maintenance and repairsContract servicesPayrollAdvertisingAdminTurn/make readyUtilitiesManagement feeTaxesInsuranceThere are also other losses, includingLoss-to-leaseVacancyConcessionsUnits (employee, model, etc.)Bad debt