The choices are practically infinite for these types of alarms.Here is a best of 2023 kinda thing on pool alarms - https://www.thespruce.com/best...

This is someone looking to get into real estate investing that has good credit (can qualify for their own 5 mortgages), but no cash...and most likely no time to be an investor.5 - Repeat steps #2 & 3 with them...with you providing the "Entrance Strategy" (the cash IN), and you new Credit Partner providing the "Exit Strategy" (the refinancing to get the cash out to re-use)6 - Split the cash flow and any future profits if house is sold.7 - Repeat step #4 - 6 as many times as you can find Credit Partners.8 - After the last refi, whenever that would be, you refi you (original) cash out, never really ever "spending it"...just using/moving it strategically.The answer to your original question of "How many homes can I purchase", is an infinite amount with limits based on available homes and available Credit Partners.Joe VilleneuveREcapSystemA2REIC 

Assuming you have the technical expertise and a team in place to manage that investment, the  $5.12M property could earn you infinitely more than stagnant equity.  

At the same time it said this power was not infinite could be limited by judicial review.So its settled constitutional law that the contract clause does NOT disallow actions by the state that violate private contracts.

Now, just because you can get to infinite return doesn't mean you should either. 

In your scenario the CoC returns are infinite BUT I would be concerned about how little it is cashflowing and unknown expenses.

And since I’m not using any of my own $$ any CF should appear as an infinite return.

As long as you think you can keep it rented, with cashflow, you have infinite ROI.

Now my ROI on my first property is infinite!

So cash on cash is almost infinite.