The goal is to make money, collect profits, NOT collecting properties.  

Some folks are happy with 5-8% profit margin and others don't look at much under 20%.It is all going to be up to you where you are most comfortable. 

(I am a silent investor, the developer is doing all the heavy lifting, and we split profits at the end)

Then turn your profits into assets that provide monthly cash flow.

The cost to do this just comes out of the total profit margin. 

I'm ok with gambling on it.

Now that I've had a bit of time to put in some info into rental hero, under the "profit and loss" section, you can save/print a PDF with details. 

Either1) your startup takes off and you can distribute profit fast enough to pay off your debts, or2) you find another source of $100,000 a year (which barely even starts to pay down the $300k, but might provide a better chance for a better loan), or3) you BK and possibly lose the rental houses to creditors (hopefully not, but we don’t know how they are held), or 4) you sell the houses, take the tax hit, work with the IRS on a payment plan whose interest will be much lower than your CCs, and focus on the startup.  

I'm making great profits off them, but I'm having issues with my m-th bookings and I would like to raise my rates.

Being that my business is brand new, do I project business profit when they ask for the annual business income?