A non-resident owner must also provide a form W-8ECI to the rental agent (property manager) and obtain a tax payer identification number.

Corresponding rental application & identification for each tenant. 

So let your exchanges commence on each sale and if you find good replacements in the 45 day identification period then complete your 1031. 

You have to make sure to adhere to the identification requirements and the tight calendars.But the IRS doesn't care how many replacement purchases you make (or where they are). 

Thanks.I also don't think it's necessary to use Specific Identification method now.

@Michael MaartensDo you have an ITIN(individual taxpayer identification number)?

Vin

Corresponding rental application & identification for each tenant.

I basically identified a bunch of properties prior to the 45 day identification period and carved it down very quickly based upon negotiations. 180 days to close seems to be ample time, but anything can happen.

You also want to match up the VIN that is physically on the home with the title you’re being given.