I have studied the market, I have contacts on the ground and it's one of my preferred markets in Latin America.

@Abby Vohra there are many Facebook groups for expat relocating to Portugal that offer help in immigration, real estate and tax.Many of the ones I am a member of are British or American, but the American relocation rules are the same for you.I run one of these groups for social events in the Coimbra region.

If you're doing this a lot Amazon has a 5% cash back American Express card that is highly beneficial. 

I've talked to Morris Invest and Cashflow Savvy and I found Pinnacle Investments, Norada, American Property Investments and Maverick Investment Group on Turnkey-reviews.com.

I use "American Tenant Screen" since 1990 to do credit checks, evictions and criminal background checks.

I used index funds because that should be the only way to invest in stocks for the average American with the goal to provide a constructive feedback to this particular example.2. 

We just got 1 yr insurance on a 22 unit apartment for 2800.American Modern.For apartments I use HUB.

That is the way I would expect any red blooded American business man to act.

I know that this is an old thread but thought that I would mention American Modern Insurance Group as well to insure mobile homes.We have stuck with them so far and have found their rates comparable to Foremost.

I haven't looked, but I bet there is one available here on BP.Finally, the AIA (American Institute of Architects) publishes guides you can purchase that give you all kinds of figures for calculating costs.