But if I've marked those up by 30% then it only costs $1400 to fulfill.

Should this issue be a partial responsibility for their absense while leaking and should we deduct some cost from them?

This should draw further capital and also people looking to relocate for the cost of living. 

Here are some specifics:Purchase price: $955KSeller Finance offer: 20% ($190K)Reno cost: $90K Ideally we would like to do a Morby Method where we purchase the home via conventional mortgage or hard money lender and on the back end have the seller lend us the $190K with a second position lien on the property and a 5-year payback.

You could even look into Opportunity Zones.Other options are doing a Cost Segregation study depending on the property.To drag out the gains, you can do a Deferred Sales Trust, or Installment Sale.

Even with an FHA, the work needed can creep upwards of similar or more than the closing costs, so you're looking at doubling your cost to own a multi-family property. 

The result is that the cost to add a hands off ADU is much greater than will be added by the ADU.  

Lots of good advice above. 98 percent of wholesalers don't even know how to evaluate rehab costs and have no access to get the true ARV and don't care either way, they are just trying to make the biggest spread instead of finding the best win-win scenario.

It is fairly low-cost and efficient (you can always scale your entities as you grow; there is no need for an ultracomplex structure at the outset), but it is essential to ensure that entities are appropriately maintained. 

I'd like to explore card operated laundry to provide that as an option for tenants, to offset the cost of running the washer and dryer while I pay for utilities.