Her idea at present is going to be to purchase the house herself (using traditional financing - high interest rate) and make the payment affordable for the family's rent to cover by arranging the sale well below market value and putting up a down payment of 30+ % of her own money, resulting in a PITI of ~1500.

I Just provided them the info stating that their estimated gross income is extremely high.

Employee Management: Given the absentee nature of the business, how do you ensure quality staff performance and customer service in your absence?

I currently own rental property in a high cost state, and I've never used a management company.

I highly recommend the book "Invest in Debt" by Jimmy Napier.

(Roeland Park is a high price point area, Which turns into Million dollar homes as you head South into Mission and Fairway.As you head NW, it turns into a C market area.

High to mid 6s depending how much down. 

I tend to avoid looking at them unless a builder is giving a super big rate buy down AND it's not stock.You need to network to find really quality contractors, and then identify a property and buy it slightly beat up & add to it.

You don't HAVE to buy points, but if you have a high DTI, the lender might not be able to do the deal unless you do, we can't tell from the information that you've provided here. 

RentingFamilyMember is not interetsed in making money, just not paying the food, utilities, etc. of the SiblingRenter.(2) RentingFamilyMember's AGI is too high and Schedule E passive losses are limited.