I have opportunity to buy a small portfolio of performing commercial notes with LTV's less than 50%.  

One thing NOT in their contracts is their performance numbers.

I think an equally probable scenario is that we'll convert it to a rental, and then look into a 1031 exchange if we think we can trade into a better-performing asset. 

.✔ Ensure All Basic Maintenance Issues Are Addressed – A rental sitting on the market is a great time to check for leaks, HVAC performance, paint touch-ups, and deep cleaning to make sure it’s move-in ready.

I'm looking to categorize my buyers and blast out a text message to specific groups whenever I get a property that fits their criteria.I'm sure services like this exist out there but I'm looking for the most cost effective one and I'd rather hear the best from you guys rather than from the salesman pitching their product.Does anyone use a platform like this and how does it perform for you?

There is no housing market in US where real estate can out perform stocks.

The client gets to receive the home as a performing asset with built-in property management in place so the entire process can be smooth and enjoyable.

So now you are throwing good money after bad probably without a guarantee of any actual performance of the company until much later down the line.  

Do not rely on your subcontractors to know/perform the code correctly for your area.

When you have a proven track record of performance, then you can play with other people's money.