You can look into getting a portfolio loan - but most lenders will require that each door has a value of atleast $75K. 

It does not matter if you have a small online store, have a mobile coffee shop in a trailer or if you are flipping couches.

The loan remains in the name of the borrower.An official assumption means that you are applying for the loan with the bank and must meet all of the underwriting requirements.

Most lenders will require a 15-20% down payment assuming credit is strong and property can perform from a producing income standpoint.  

Since loans are considered securities, most states require a security exemption, which can be prohibitively expensive.At least one state, California, automatically grants licensed CA real estate brokers an exemption without requiring them to go through the expensive registration process.  

if you just pick something online and buy it - you will lose money.I like @Jake Andronico's post because he's recommending a higher cost, closer area. 

If you time this well, and develop mid-late Recovery phase, your projects should be coming online right at the height of the demand depending on the market.

It opens up some doors and I think the cost with some online programs is not outrageous.

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.

A short term rental requires quite a bit more effort than a long term rental including quick response to all guest communications, managing cleanings after every stay, keeping on top of maintenance (emergency and deferred), marketing the property on all major OTA sites (i.e.