I have the option to buy a 1,300-sqft 3-bed, 1.5-bath house in South End neighborhood of Stamford, CT, from a family member before it goes on the market.

Which will make it 4bed 2 bath, and some 4 beds on the same street shave sold for 220k. 

Obviously this won't work for a  5 bed but if you are just getting 1-2 roomers  check the policy.

Would a property with 4 bed or 5 bedroom would have a better cash flow ? 

Make sure any lease agreement you use complies with Arizona's landlord-tenant laws, including required disclosures (like bed bug information, for example).If you're unsure, consulting with a local real estate attorney to review the agreement can provide peace of mind and ensure you're fully protected.

Fix it.We eliminate as much landscaping as possible: we take out flower beds and most decorative features, ideally, lawn mowing is the only job tenants have to do, because we know that's all we can expect from most.

I own one half, 3 bed 3 bath, and I’m currently living in and renovating it with plans to rent down the line.

It's 3 bed 2 full bath and 1,300 sqft.

3 bed 2 bath. its a pretty big space.

Both units are spacious 2 bed - 1 bath units.