Greater Boston-10+ people STR accommodation

[Ling Lin]

I plan to purchase a house thats over 3800 sqft 6 bed/4 bath in greater boston area. I cannot find many houses that can accommodate more than 10 or more people. I am in the debate of fix and flip or fix then STR or LTR. Ideally i would prefer STR because more cash flow but i just cannot find many examples in the area for me to make the judgement. What would you do?