I like the BIGGERPOCKETS calculators for running numbers on these types of deals.

The floor area is to be calculated on the basis of total dwelling unit area.Thank you for making some excellent items to consider going forward.

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?

I ran some quick numbers and would estimate (assuming you have good credit) you could borrow around $415k-$420k, which includes funding 100% of the rehab costs.Have you calculated your expected profit based on selling after rehab and if you decide to keep long term? 

Since 1031 is tax deferral, I assume the gain is calculated with the likely substantially lower basis from the pre 1031 property acquisition + additional cost over the years.And yes, recapture all depreciation ( on both prop before and after 1031) make sense.

Here’s what I do with my rentals:I either have tenants split the utility bills or include a clause in the lease that states if the gas or water bill exceeds a specific amount ($X), the tenant will be responsible for the overage, provided there are no leaks or other infrastructure issues contributing to the high usage.To determine this $X amount:Water: I take the highest water bill I’ve had over the past year (excluding periods where leaks occurred) and add about $15 to account for small fluctuations or potential increases.Gas: For gas, I calculate the median bill during the winter (when usage is highest) and the median bill in the summer (when usage is typically lowest).

And the calculation windows for when interest is assessed would probably surprise most people, it's generally not what one thinks it is so often waiting to that statement does often incur interest charges. 

As I said, math and numbers aren't my strength, but I'm a dedicated student when I put my mind to something, and I know how to read and use a calculator :)Thanks for reading!

When analyzing a new build/“build to rent” property as a rental, what percentages/amounts are others using for:-Maintenance/Repairs-Vacancy-CapexI’d assume it’s less than than existing homes, but by half or is it safe...

They have an app that you can run comps on, play with rehab budgets, do ARV calculations as you drive for dollars and apply for the loan on the spot.