Understand the fees involved and calculate the total cost for an entire year of management so you can compare the different managers.

Here's a bit more in detail about how rates are calculated for DSCR loans:1.

BiggerPockets also has a calculator to analyze deals, and I highly recommend you start this as soon as possible, even if you are not ready to buy.

In calculating the actual construction loan amount will it be the 50k+construction costs?

A cost segregation study should only need to be performed one time for each property and the annual depreciation calculated during the study using the detailed asset listing is relevant for as long as you own the property.

I'd like to know in your experience what I should be calculating for my estimated expenses?

BiggerPockets also has a calculator to analyze deals, and I highly recommend you start this as soon as possible, even if you are not ready to buy.

It's worth looking at a blended rate calculator before you make a final decision of the type of loan as it will show the new "blended rate" of your HELOC and first mortgage if you go that route.

We still need to calculate appliances, flooring, windows, HVAC, fixtures....My point is that we need to be putting away money to keep our properties in max market rent rate condition.

For market pricing, I collect LTR data from BP rent calculator and multiply by 1.5x.