Does anyone have a spreadsheet where you can add all the terms like the rental calc here BUT that allows you add the next property so it accumulates the cash flow and has short term properties fall of the debt as they expire and the money gets added to the potential income?

Sit and accumulate cash, waiting or a crash OR buy now? 

It takes a little while to save up for the first and second, but after that you start to accumulate cash much faster.  

It probably is not prudent if you own 3 properties, and financed each with FHA loans (if you lived in each for one year) and have only accumulate 5% equity in these properties.

However, you can certainly require an additional pet fee and monthly pet rent to accumulate toward the cost of your fence repair over time, as well as requiring renters insurance and adding a pet addendum to your original lease agreement to cover any possible liabilities for you.

We used the money we received toward the purchase of our current home, and to pay off some unnecessary debt we had accumulated. it honestly hadn't dawned on me that we flipped that house.

You are on the right track yo just need to build up a rental history so that you will be able to refinance your properties   The equity will accumulate over time. 

These take place when counties auction off the tax liens that have accumulated due to unpaid property taxes.

Depending on cash flow for each, you will be accumulating additional money as well, which can be used for future purchases and/or improvements.

So far it has been 2 years that we live in it and couldn't be happier about what that lifestyle is giving to us in terms of freedom.Our experience with real estate for the moment is that we built that tiny house by ourselves and by doing so accumulated quite a few construction skills.