So if you think you can net say $45k/yr in profit it will take you 3 years to break even if you ignore income taxes.

Prioritize constructing long-term wealth, striking a balance between immediate rewards and long-term objectives to generate passive income and lasting wealth.

That being said, if you are the property manager, couldn't you consider yourself a real estate professional and run these profits through a separate S-Corp (or an LLC taxed as an S-Corp) and then draw off a W-2 / and a K1 and then shuttle these proceeds over to a solo 401k ?

Note: Payment on any debt secured by virtual currency is an exception to the above policy and must be included when calculating the debt-to-income ratio.

I pay 6% interest only on free-and-clear houses, and have also taken over mortgages, subject to the existing financing.A rental ought to be on your tax returns for 2 years before lenders use the extra money as income.  

Could you go reinvest it in another property to build even more income?

How can I setup a Solo 401k if I have only rental income?

Right now we just have a separate personal account that houses our rental income and expenses.

I received an insurance pay out and lost rental income through September 2023, which has since ended. 

When you look at average income vs. purchase price, the current market is unsustainable.