+1 for PMS integration and no issues with VRBO. 

If you sign up for the free trial they will automatically charge you for a subscription (usually around $1100) and they will refuse to issue refunds or close an account.

The issues come in when the investor buys the property and how good they are at doing their own title search and determining a clear chain of title.  

I just wanted to hear the thoughts of more seasoned investors. I currently house hack a duplex that I bought 2 years ago. I want to add to my portfolio intelligently and patiently, making sure I don’t over leverage. S...

While these platforms were helpful and essential while we grew a large multi-state team, they aren't totally necessary. 

Single family homes have the benefit of the tenant paying all utilities, taking care of all landscaping/snow, and lower cost replacement when things go wrong (a roof on a single family home is a lot less then on a large multi).

My understanding is that assuming that one has no debt other than the mortgage for the first househack, it is calculated as(PITI1 + PITI2) / (Monthly Paycheck + 0.75*Rent1 + 0.75*Rent2)Rent1 is the total rent collected from the first property assuming that you have moved out and have fully rented it, and Rent2 is the rent collected from the other units in the new multi-family property that you want to buy.Is this correct?

I am in contract with a 3 family multi unit property.

That bug is now fixed, so if this is a new issue, you may have been one of the "lucky" ones. :) 

For those that had SFRs and sold to buy a multi-family, when did you feel it was the right time to scale?