One of the catches is I have to be a primary resident of one of the units for an extended period of time which isn't a problem for house hacking.

Sounds like the seller is being lazy, he can definitely provide you with SOMETHING showing that rent has been paid by these tenants for the duration of their tenancy.

Here is a third bullet from the article above:"Dramatically extend the CARES Act’s eviction moratorium to apply to virtually all single family and multifamily rental housing and suspend the collection of fees and halt eviction cases due to nonpayment of rent for 12 months from the date of enactment.

The extended family are open to being paid out for their share. 

I would have your realtor reach out to them about making their earnest money “go hard” (you’re keeping it if they don’t buy.) and a firm closing date that will happen or they will give you more hard earnest money to cover your extended carrying costs. 

Please note that per the multiple loan rules, the amount of the loan must be reduced by the highest outstanding balance of any other 401k participant loan over the prior 12 months (regardless of whether such other loan is currently outstanding).Monthly or Quarterly Payments: The loan must be paid back in equal monthly or quarterly payments of principal and interest.Interest Rate: The interest rate is equal to prime plus 1% (or CD rate plus 2%) and is a fixed rate that is set at the time that the loan is taken.Term of the Loan: Five-year term unless the proceeds of the loan are used to purchase a primary residence in which case the term of the loan may be up to 30 years.First Payment:For monthly payments, the first payment that would otherwise be due is delayed until January 2021 (e.g. if the first monthly payment would have been due on May 15, 2020, it will be due on January 15, 2021).For quarterly payments, the first payment that would otherwise be due is delayed until the first quarter of 2021 (e.g. if the first quarterly payment would have been due on May 15, 2020, it will be due on February 15, 2021).EXISTING LOANS:The CARES Act which was enacted to provide relief to individuals impacted by COVID-19 allows for increased 401k loans and more flexibility for repayment of these loans.Specifically, you must be an individual who meets one of the following conditions to demonstrate that you have been impacted by the crisis (and it will be your responsibility to retain documents in your files that demonstrates that you are a qualified individual):Individual who is diagnosed with COVID-19, with a CDC-approved test;Individual whose spouse or dependent is diagnosed with COVID-19, with a CDC-approved test; ORIndividual who experiences adverse financial consequences as a result of being quarantined, furloughed, laid off, having work hours reduced, being unable to work due to lack of child care due to COVID-19, closing or reducing hours of a business owned or operated by the individual due to COVID-19; or other factors as determined by the Treasury Secretary.If you meet the above conditions:You may delay making any 401k loan payments due between 3/27/2020 and 12/31/2020.You must commence making loan payments in January 2021 (or the first quarter of 2021 if your loan payments are due on a quarterly basis).If you elect to delay making such loan payments, the term of your loan will be appropriately extended.

 We are in the process of extending our lease on our townhouse.

Buy a new one and get the longest extended warranty available.

First make sure your gutters aren't clogged and your drains have extenders that route the water away from the foundations.

Make sure all downspouts are extended away from the house, check the slope to make sure it drains away from the house.