They don't care about the cash-flow, The write-off's are profitable and there looking at the out-sized equitable gains. 

@Renee LeFevreTo rent out your basement, follow these steps: check local regulations, prepare the basement with separate entrance, screen potential tenants, draft a lease agreement, set the right rent price, consider tax implications, update homeowner's insurance, and build a positive tenant relationship to attract quality renters.Good Luck!

.), are there any particular upsides or downsides of purchasing all single bedroom units vs. a more traditional mix of units for a property that size? 

The portfolio consists of properties ranging in size from duplexes up to a 24 unit building.Financing: I received my initial capital through a HELOC on my primary residence.

Finding a viable deal requires flexibility in location, property size, and type.

I can then take those figures and estimate for future deals based on size, room and bathroom count, etc. 

For loan balances under $200k, you are better off going DSCR with a 5 year prepayment penalty and paying 2 total points on the loan (1 point is 1% of the loan size).

Little bit of framing and some drywall work to make a closet in a room if it has the size to do it. 

For context the comps are roughly the same sqft, 200sqft give or take, same beds/bath, same lot size, same year built.To help, here are my numbers.

Size it appropriately so that f you lose you’ll live to fight another day.