@Shu Matsuo Post I can assist you with info on mortgage programs for foreign nationals 

The National Science Foundation did a study in the early `1990s that found 55% of adult Americans could not correctly answer "does the earth go around the sun or the sun around the earth, and how long does it take?".

@Najee Hoggard Looking up studies and statistics from the National Association of Realtors at realtor.org is a good starting point.

These are usually large firms with national presences and usually do a fine job. 

Hello BP Nation,I would like your thoughts on this please.I took a look at a 10 unit for the first time.

View report*This link comes directly from our calculators, based on infoHello BP Nation,I would like your thoughts on this please.I took a look at a 10 unit for the first time.

For comparison, the national inventory is at a 3.5-months supply, according to NAR;Townhome/condominium sales fell for a seventh straight month – down 9.2 percent, with the average price flat at $211,241 and the median price up 2.8 percent to $174,750;Lease properties staged another strong performance as single-family home rentals shot up 18.4 percent with the average rent unchanged at $1,746;Volume of townhome/condominium leases surged 16.7 percent with the average rent up 2.0 percent to $1,530.https://www.har.com/content/newsroom?

I've used Security National in the past. 

Think national!!

I spoke with one national bank and that was a waste of time (they required 1.5 DSCR and 50% LTV)