I am a hard money lender and need advise if an unsecured loan I made through the Solo 401k defaults and is uncollectible are there tax write-offs as a result of the uncollected loan?

Additonally investor buyers use matrix like cash flow to determine value. 

I would recommend getting with a CPA to go through your tax liability.

You cannot cherry pick a lender its not that easy you have to be more involved as a Banker or Loan officer.If you are not a lender my first thought was how welll versed are your point of contacts to assist a borrower unless its done through your software.

There are a few options(1)You can get connected with the larger wholesaler firms in the area (2) go through PCPAO site and skiptrace the buyers of similar properties as yours, (3) hunt down the agents involved in the sale of properties similar to yours or go to local REI meetings and pitch it to the investors there. 

I think there's a path to refinance that would flip me into positive cash flow, but I'm coming up short on ideas. 

When that happens you will only lose part of your cash flow rather than all of it if you have multiple DSTS vs one larger one.

With a large portion of the incoming migration coming from international residents moving to the District, emphasizing improving and bringing back Washington D.C. sports teams to the city should create a strong desire for domestic residents to want to live near a fun, community engaging activity that is very relevant to those that live in and around the city.The District also has other programs it is running to make the District more attractive to live in outside of just working in the area, such as the Office to Anything program (Source) and the Housing in Downtown program (Source) which will incentivize developer through tax credits to convert office buildings into new construction housing and new construction retail properties, which should continue to attract more residents back to the area.D.C. also understands that with all of these big changes we have seen, the strategy and allocation of resources from the government moving forward should be reassessed to create a city that is adapting to the future trends to remain a safe and desirable place for residents to live.

Evaluate potential rental properties with a keen eye on location, cash flow, and potential appreciation.

Thus, I'm not seeking 100 occupancy.Staci  If guests take that much, I would 100% be asking for reimbursement through Airbnb.