My recommendation is still going to be the same as I've put in other threads; buy 1.25x DSCR in a very good area or up & coming area of a very good city ideally through BRRR(you'll keep 10-30% of the capital in the deal likely), invest ideally 60-80% of your downpayment(no less than 33%) in a debt note fund that matures in 2-4 years.

Ironically it's normally the individuals who go to the greatest lengths believing they are protecting themselves who are the most reckless in the way in which they operate their real estate.

So, you, as an individual, may not get to the same rate that a MASSIVE national builder can...but you can certainly offer credits to the buyers to help buy down the rates. 

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.

Prepared to hold for 8 years, ideally 10-12.

It seems like it basically up to you to do the math on how much more you will potentially make selling each unit individually and then deciding if that extra $$$ is worth the number of extra hours you will spend.

Requiring the homeowner to replace the pipe individually would seem like a huge octopus of inspections and enforcements and etc.

Ideally you have the company and the tenants on the lease since one party is paying rent and the other party is in the home.

Its my understanding that the individuals are responsible for all the legalities, contracts ect to make it safe not to get ripped off. 

(systolic pressure rising so won't get into that)And many less experienced individual investors in SFRs don't do as well as others and "well" means what could you have done otherwise.