To work most effectively, both of these techniques need to be “tweaked” or modified to best work with whatever the current real estate market is.  

Putting RE in an IRA effectively gives away the benefits of RE.

The only upside is that this doesn't go into effect until 2026 so everything I bought last year, this year and next year will continue under the current laws.

In their first year, many agents  go through their personal network and get all the "low hanging fruit".

While not the most efficient, I can effectively keep track of approx 30 active loans and it works for me. 

Additionally, what do you consider the most effective approach for collecting the owed amount?

What cost-effective options are out there? 

I am looking for a platform that is cost effective, but allows me to track all the essentials, give owners access, and ease of accounting.

To manage properties effectively, ensure tenant satisfaction, maintain the property, and handle legal matters, hiring a property manager who is a member of the National Association of Residential Property Managers (NARPM) is an excellent choice.

GCE is designed to protect poorly performing tenants thus, as a side effect will de-house good tenants.