You can prepare yourself for that by having another inspection conducted 10 months in then bringing that to the builder to see if they can fix anything outstanding for you, before the warranty is up (if applicable).In summary, buying a new build means you have to arm yourself with information so that you know what you are getting into.

What information about myself and my partnership can I pre-package to arm myself with before approaching a potential lender?

In terms of them renewing if they are existing have them fill out a rental application.

Yes, it is possible to get a cost segregation study on a property placed into service in the past.There is potentially a requirement to file form 3115 which basically says that you screwed up the depreciation in the past and are therefore recalculating it.

You can have a lot of social security, rental income, interest, dividends, etcI am not to say your income will be higher when you retire or that tax rates will be much higher, I am just here to say the only difference is 10% and not 30%.To add on all of this - If you keep your assets in a retirement account, your distribution will be taxed at marginal tax rates(Currently tax rates are between 10% and 37% + state taxes)If you invest personally in your own name, you have the opportunity to escape tax on any appreciation if you have heirs that inherit the property.Even if you decide to sell the property, you are paying taxes at the preferred capital gains tax rate(Currently at 0%, 15% or 20% + State taxes + Potentially NIIT)That difference alone pays for the 10% penalty.

So basically if I’m understanding you correctly, your saying a way I could potentially use my equity is as the down payment on a BRRRR as long as it’s ARV was large enough to get my HELOC money back after refinancing?

Then they will spend the day downtown required to get a permit application through.

I'm particularly drawn to the flexibility and potential for growth that real estate offers. 

We fell in love with this house and its potential, one block from the hospital at which my wife worked in 2022.

Definitely something to consider while vetting out potential GP's.