I have been thinking about investing in the Crowdstreet blended portfolio, in my IRA.

You may run into transfer limits and slower payment processing times with some of those other apps which aren't necessarily designed for the purpose of rent collection (venmo, zelle, etc) but the right landlord software can make this seamless for you.

Technology advancements such as email, phone calls, skype has enabled communication with a remote CPA to be seamless.

You more than likely can't dove-tail your marketing like you could with a seamless transition.  

I want my RE biz to be a blend of residual income with the bigger one-off commission chunks, so there's less of the feed and famine scenario! 

You should find dozens of agreements online from a Google search that you can download.Copy and paste the parts that you like from each of them, then blend all the bits and pieces together, so they flow properly.Then take it to an experienced REAL ESTATE attorney to review for legal compliance and offer suggestions.Ongoing you can update as you encounter new issues you want to incorporate.

There is never going to be a strategy the works seamlessly for every market. 

Very seamless transaction. 

We’ve always done a blend of some hands-on (I paint, hubby swaps out light switches and fixtures), and we hire out almost everything else. 

How do they make the transition from one PM to another seamless if and when a transition occurs?