If you are planning to hold onto the property, a good hard money lender (I suppose also a wise investor, as well) would make sure to be pre-approved to refinance the property sufficiently to pay off the loan.Even hard money loans will require you to put some money down. 

First off, I'd say it's unprofessional to be sleeping with a tenant. 2) can you talk some sense into him, like "hey man we're literally going to lose Dad's investment if this goes sideways with your gf/tenant & being that we haven't figured the situation out with Dad's gf, this could get messy and us 4 BROTHERs may lose money as a whole, do you think Dad would want that?"

I focus on properties that can sleep over 20 people so that people can use them for multi-family vacations or retreats.

Evidence of water leaks, fire, smoke, foul odors, sounds indicating the possibility of an injured person or animal and other similar evidence of an emergency shall all be sufficient grounds for Landlord and Landlord’s agents to enter Premises and Property for this purpose."

Its in a live able condition but would that be sufficient to rent it out?

I would argue it's a risky job due to the high property prices that are starting to go down.If you want to build wealth, you need to look at buy-and-hold properties that produce income while you sleep.

Cabin sleeps 10.

For about half they seem to regret it, I am betting because they ran before they could walk. eXp has a great, not good, structure for the self-sufficient agent.

Your basic insurance policy with $300,000 in liability coverage should be sufficient in 99.999% of all lawsuits.5.

That should be sufficient protection for you if you're underwriting your buyer well.