No cut and dry calculation for it. 

Co-hosting allows me to work with existing property owners to bring them more cash-flow for a percentage cut.

When it is an 18K house (listed for 49K) and I am making $410 want me to "take a bit of a cut to make the margins worth it".

Hey Ethan, of course we are going to be biased here but some of the pros and cons:Pro: In a cut in dry answer, credit unions can offer lower rates some of the time. 

Fortunately, the condo has two showers. a plumber will out tomorrow, but I don’t understand how they find the source of the leak, if I can’t authorize for them to cut the dry wall on a condo that’s not mine. shouldn the owner downstairs call a plumber? 

Fair warning -  it is death by 1000 cuts while you furnish a place to make it market ready.

Should I consider refinancing to help decrease my monthly payment (my current rate is 6.41%), should I cut my losses and sell the property (which I’m hesitant to do bc I don’t expect to househack again), or is there any other route I can take?

Step One: Gave them a taste of entrepreneurship (rite of passage stuff) they cut grass, shoveled snow (as a group) Team workThen my wife an I let them try their own ideas out on the world.

They can buy property any way they want, including with cash, but the low interest rate mortgage on their reasonably lightly levered acquisition is an attractive component of the deal.

Many people think that they can or should be able to cut out a realtor or broker based on their opinion of the level of effort they've made OR the fact that they went around their backs and tried to negotiate directly.