I recommend determining your set price point plus closing cost expense and then calculating what minimum rent would be required to cash flow the property. 

Your IRA custodian should have advised you by now and calculated the amount for you.

How do I properly calculate these numbers?

Key Market Movers and How to Track Rateshttps://www.biggerpockets.com/blog/2024-dscr-loan-rates-and-...How Do DSCR Lenders Calculate Your Interest Rate?

Just enter the address of whatever property you're looking at and the site calculates the market rents 

However, from my experience in Europe, particularly in the Netherlands and Spain, calculations still play a big role in ensuring the profitability of a flipping or rental project.

When you looked at the numbers on the top 3, they all had good cash flow and great appreciation (the numbers were calculated as though no equity had been extracted). 

Learn from this experience & do some simple calculations to find a good rental rate. $1200 at 1.5 months vacant will yield a greater annual EGI ($12,600) than $1350 with 3 months vacant ($12,150).

It took less than 5 minutes to enter this data into the BP Rental Calculator and see that the potential was outstanding.

The BRRRR calculator may help you understand this better as the results are shown in three different phases - rehab, post rehab and then post refinance.