Tenants are responsible for property taxes, insurance on the building, and common area and maintenance costs under triple net lease.

Not to scare you - but we made one mistake on a flip - replacing old wooden windows instead of rebuilding them - and it ended up costing us $50,000 to our $175,000 profit margin.  

Welcome to the forums.There is lots of free info here and all over the place.

I love that you rented two of your bedrooms as mid term and short term rentals and made enough to pay for the mortgage and now you are going to use the rental income to show you can qualify for another property.This is an excellent strategy and one more people should consider doing in this inflationary environment to offset the biggest cost in their budget--housing.As you rightly point out, you can use this strategy with every house you buy accumulating a portfolio of houses that you originally started out living in as a primary residence every two years.Well done and more people should consider doing the same, or rent their garage, or shed, or a boat, or an extra car.Love it!

Feel free to reach out if you have any questions, would like to discuss, or would like to get this process started!

However, I may be able to answer any other questions you have so feel free to reach out any time.

(Eg Travelling cost, cost to repair (labor,  materials).

Feel free to reach out to me if you have any questions or want to talk financing!

It is great to have you and please feel free to jump in the community - there are certainly great people around here.

I have a few partners, but went over budget and personally funded the remaining construction costs.