The answers for her are NOT books and podcasts.You need to come up with illustrative exercises.

If your $115k property is now worth $230k, it's rent has to increase from $1,150/mo to $2,300/mo for true cash flow returns to keep pace (for illustration purposes).  

Here's some real examples (with changed names / locations of the posters) to illustrate my point:"Oh, I lived there 10 years ago" - Fred in Topeka;   yup, irrelevant to the current real estate market."

This criteria is for 1-4 and 5-8 unit programs.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 = 1.23DSCR lenders generally let you vest either individually or as an LLC.

The point I was trying to illustrate was what, @Ashton Levarek has confirmed.

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).

Here is a fun lil horror story to illustrate the need to line up your ducks FIRST!! 

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).

Here are some observations:The leading 8 listings have accumulated between 40 and 57 reviews in the past year.5 out of 8 listings feature 2 bedrooms and 2 bathrooms.2 out of 8 listings are studios, with the top-performing studio amassing 44 reviews in the past 12 months.The average daily rate spans from $116 up to $526.Next, let’s examine the most prevalent amenities among the 30 listings in this vicinity.The chart below illustrates the top 100 most common amenities in this neighborhood.

I say all this to illustrate in the Minnesota market that these rules can be good starting points but you’ll need experience to understand how to apply the rules.