Not too sure about MA but just to give you an example...you'd have to put 80K down for a 400K condo...

@Kevin Vandenboss when would I arrange for and get to have the walk through, check out the roof, HVAC, heating system things like that for example. 

For example, you rent the ADU 200 days a year and are living in the main house 365 days a year.

For example, I have found a property around $165k.

Therefore I do not have a set minimum on cash flow but we have never purchased a property with negative cash flow projection but we would consider doing so.Here are two examples of properties that we purchased that cash flow was not a primary consideration:A Duplex that penciled out at about cash flow neutral upon purchase using conservative numbers. 

Construction, for example, will add risk to a project because it limits the capacity for collecting rents during this time.

Managing a rehab (BRRRR) is an example of substituting money with time.Most of the time when you invest in real estate it is a combination of all three, time money and energy.

For example, you find a seller that is agreeing to your terms, now you want to write up the agreement of sale.

For example, we have seen multiple instances of C-Corps set up that made no sense when one looks at the clients' financials, returns, businesses & goals. 

IRS required non recourse loans which carry a higher interest rate (approx 6% for 20 years fixed for example and lenders require higher down payment, 40% as non recourse ).