We use DealCheck to underwire and QuickBooks Online for everything related to accounting and numbers.

I am guessing they were able to buy multiple properties in a year after they started seeing some profit from selling or refinancing homes they already had.

There are so many misleading "gurus" and advice from others online - that don't make logical sense.Who do you think qualifies for an S8 voucher?

I'd look at crime rates and I'd also look at multifamily supply projections to see how many units are expected to come online in the next few years. 

My construction lender offered a portfolio loan option for me, but yes, refinancing it to conventional is definitely an option.  

I have searched for this on the forums extensively and online, to the point where I've started building my own and writing the code myself.

I checked online and generally folks say Bank of Texas or local credit unions.Thanks! 

Gox online filing system will be able to check the results by logging into the system.

But I think that’s BS, can’t find the right information online supporting or denying this. 

Go to Etsy and search for "rental property tracker," and you will find hundreds of nice spreadsheets to track 10-20 rentals, usually for under $10.Software has extremely helpful features like online payments, marketing syndication (click a button, and your property is advertised on multiple sites), electronic document review/signing, maintenance tracking, and owner reports.