I used FHA (3.5%) down and will be cash flowing around $550/month.  

I think worst case scenario I'll be out 30% for vacancy, CapX, and management which still leaves $375 cash flow. 

Performing will provide steady flow but they cost more.

Looking for monthly positive cash flow on the rentals enough to get a 5 to 7 percent Cash on cash return on the property.

The $510 decamps to $208 for the HELOC payment, $75 for lawn care/snow removal per month, and $227 monthly in owner paid utilities -quoted by the utility company- I plan to manage the property, but budgeted for management expense anyway- Furnace and roof were recently replaced- Loan terms are 3.75 with 3.125 points (included in the $7k closing costs above per the bank) - 30 year mortgage- My goal is to buy and hold with an eye on retirement, but of course I'd like to cash flow now. 

I ask because I figure that as a foreigner, investing in US property is not ideal from a cash flow perspective unless you're scaling with multiple properties.

Not sure that you would cash flow from what I have heard in California but definitely possible. 

I also seek to add value to investors by enabling them to find and invest in great cash flow properties, while maximizing their time, as well as their profitable revenue.By joining BiggerPockets, my goal is to establish a network of professionals who can aid in my growth within the real estate realm, while also finding ways that I am able to add value to those within BiggerPockets' network who may have a need for any opportunity that I may have available. 

My short term goal is to own at least 10 rental properties within the next 8 years (I have 1 now 9 more to go) with positive cash flow (ideally free and clear).

I've done a fair bit of research over the past few weeks, reading books such as What Every Real Estate Investor Needs to Know About Cash Flow, The ABCs of Real Estate Investing, and Investing in Duplexes, Triplexes & Quads.As I'm starting out, I'm interested in investing in single family residences and 2-4 unit multifamily for a long-term buy-and-hold strategy.