I'd have to see your overall layouts but I think you are on the right track. we build 3 story stacked triplexes and it's very efficient so don't be afraid to go up either. anytime you build more than 1 structure costs are much higher but if its just to offset mortgage and you want to be separate then I understand. 

Can someone help me to get in track on this?

I use QBO to keep track of my properties and do this for my bookkeeping clients also.

An experienced private money lender will want to see a track record.

Also, make sure this wholesaler has a track record.

LTV & CreditEliminate the emotion and treat this like the business it is.In my opinion it does not matter who the borrower is as long as they have a track record of ATR (Credit)And I feel comfortable with the leverage (LTV)

Do you have any other track history?

It’s also a good idea to assess their track record in handling alternative investments and supporting clients through changes.I’d be interested to hear how Inspira addresses these concerns going forward.

Investment quality is all that matters as you build the foundation for your track record.

Additionally, we have developed templates for tracking key metrics that we require our PMs to fill out weekly.