Hi Andy, how are you, good to meet you, For starters, I work with Steve Wolterman and in the event you need a great qualified intermediary, I would highly recommend his services. 

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?

You can use your platform as landlord to advertise the service, but other than that it's not related.

Look into a DSCR, Debt Service Coverage Ratio, loan where the rental income can be used to qualify the cash out refinance instead of your personal income.To Your Success! 

And go to different services to find "Rent" (like the bigerpockets rent tool, or "rentometer") and property taxes? 

You can not go wrong with the product or the customer service they provide.

@Charles Kahl What type of services specifically?

The programs he's cutting employ a lot of good people and provide a lot of good services to the country.

I usually describe DSCR loans like a see-saw (or teeter-totter)...as one side goes up (the LTV), the other side goes down (the Debt Service Coverage ratio).

I don't have my own investments but looking to partner with other investors to see if they need management services for their investment.