I purchased sub2 a handful of times for fix-and-flip types of situations, where I was in and out of the deal in 3 months.  

The buyer comp agreement has to be a specific dollar amount or percentage. 

For last minute cancelations, the entire amount is non-refundable, for this exact scenario. 

Is there a way to reduce the amount of hours so you have more time for other activities?

Of course it needed some extra turnover work--landscaping, above ground pool removal, cleaning, trash removal, paint and other small amounts of wear and tear. 

Depending on your goals and how many properties you plan to acquire it could be a decent amount of work.

I'm a big fan of value-add opportunities, whether it's buying something currently undervalued & fixing it up to my standards, or buying something that has additional income opportunities that have yet to be incorporated. 

@Jonathan Greene I don't mind them generally but when they raise huge amounts for syndications that go south that is another story.

This would help reduce the amount needed for a bridge loan to fund the acquisition and renovate the four vacant units.

I have not thought of using DTI instead of 3x the monthly rental amount in order to qualify an applicants income, but you made a great point regarding the priority that tenants might give a car payment.