3 home -8 bed deal 310k - good deal?

[Kaylea Blackburn]

Currently I am house hacking as a mid-term landlord (list on Airbnb.. renting Jack and Jill upstairs in our home to traveling professionals) we are consistently booked and lots of inquiries. We want to expand our beds. There is a current 3 home deal in the right neighborhood. 3 homes listed for 300k for all three. One is currently rented. Would list the others per room at 750/800 per room. Once all beds are available could rent low end 6k a month (before expense) Might be able to do 850$. Would need to use a home equity line of credit to purchase. Could this be a good deal? How do I fully analyze this? Since it’s 3 homes under one deal I’m not sure how to calculate