How did you determine what repairs needed to be done and how much they would cost the next buyer?  

Request repair requests in written form even though they may mention in passing and you are next door just so you don't lose track of things.

Can you evaluate repair costs? 

It seems most cabins typically need something (or will), some you find during an inspection, others you hear from guests, and then you need to be prepared to repair it ASAP.

On repair costs, I've been advised in the past to use $15 sqft for moderate repairs and $30 spft for big remodels.

Do you have yard maintenance, capex, repair and maintenance ect worked in? 

@Michael Rostwhenever anyone says 'great cash flow,' I don't even need to know what state or city it's in - if it's a long term rental with conventional financing at today's interest rates, it's not happening unless unrealistic assumptions are being made like zero repairs, zero capex, zero vacancy ever, zero turnover ever, and 8% rent growth forever.post the numbers here if you want a review.

How the blank are they gonna keep the properties repaired?  

You can read more books, network with contractors, improve your current properties (overdue repairs/capex), make connections with investors, and build a team for future deals.

When repairing an existing home, there always seems to be some sort of a surprise... termites, underground plumbing, lots of wood-rot under the shingles, you name it...