As a seller of RE ( mainly new builds) We do see parents being protective of kids when they are worried about the new spouse..

So the main advantage of a DSCR in this case is just the fixed rate? 

Mainly cashflow to be honest.

Expect to spend a considerable amount of your time speaking to people.Expect to work dozens of hours/week with little to no immediate result.Expect most of your early interest from potential clients to come from your sphere of influence.Expect to go 3-6 months without getting paid (unless you do rentals which usually pay faster)Expect to be bombarded with distractions - mainly, people/companies marketing to you so that you choose their system for quick and easy buyer or seller leads.

I have a tenant in Maine who refused to leave after her lease expired, and multiple notices were given saying she needed to leave after it expired. 

Factor in vacancy.  

The main issue I've come across is that everything in this price range would be cash flow negative.

Values in Commercial are a RESULT of the factors that formulate it's financial performance. 

I’m not trying to rain on anything here but the reality is that measuring Btus delivered to individual units via airflow is by its very nature imprecise - if you want to know why, read on...The size and length of the ductwork is but one factor ( of many) that will yield energy losses while that warm air is being moved to your units.

I've included an example below to help illustrate this.So different lenders have different rates (which do vary even for DSCR loans) but these are factors they all consider.See example below:DSCR < 1Principal + Interest = $1,700Taxes = $350, Insurance = $100, Association Dues = $50Total PITIA = $2200Rent = $2000DSCR = Rent/PITIA = 2000/2200 = 0.91Since the DSCR is 0.91, we know the expenses are greater than the income of the property.DSCR >1Principal + Interest = $1,500Taxes = $250, Insurance = $100, Association Dues = $25Total PITIA = $1875 Rent = $2300DSCR = Rent/PITIA = 2300/1875 = 1.23If a purchase, you also generally need reserves / savings to show you have 3-6 month payments of PITIA (principal / interest (mortgage payment), property taxes and insurance and HOA (if applicable).