I recently purchased a primary home in LA County Sept 2023 (only put 5% to do renovations and have an interest rate of 7.25%; I rent out back unit when we are out of town and intend to rent out main house eventually).

I went through your other posts here on biggerpockets, it appears that you have tax related questions throughout the year such as selling a primary residence that you lived in less than 2 years.You may want to see if you are eligible to claim partial exemption.When selecting an accountant, make sure you select someone who will be able to answer your questions.

This only works for primary residence house, so you might need to move into your rental first.

In this scenario, you will benefit more by holding off to qualify for a standard primary residence loan and house hacking. 

We no issues closing in an LLC, as a matter of fact most of my lenders will prefer it (assuming it is not your primary residence)Assuming it is not your primary residence, the easiest way to do this deal would be through a DSCR Loans.A DSCR Loan will use current rents or market rents if the property is vacant and personal tax return from you would NOT be required.It also referred to as a No Ratio Loan because your personal Debt To Income is not important.What is important is that the property can pay for itself.If we keep the LTV Low the rate for this loan can be better than a conventional loan.If you ARE Living in the property and you want to keep it... it would mostly depend on how motivated you are and how willing you'd be to "postpone gratification"The best bet is still a DSCR Loan.. which means you moving and renting the property out.We can bring in Asset Based Financing that can help with cash down (if you need it) or to pay cash for another property for you to reside in.Once you're moved out we can do the DSCR Loan at a 70% - 80% LTV or we can calculate a comfortable cash flow number.For example, max cash out that will give you $500 cashflow after a full PITI payment.Let's discuss more!

Or maybe it could be a secondary unit in addition to the primary washer/dryer for larger homes that could use a third solution as a backup on a second or third floor.  

Getting receipts or invoices was the primary requirement in this little project.

I want to sell it and use the money to buy a primary residence.I am wondering what the tax implications will be, such as capital gains, paying taxes on items that I have written off/deferred, etc. 

My next visit to the property to upgrade flooring in primary bedroom about two weeks later it was raining and I noticed 1.

The unfortunate thing here is that investment properties foreclose at a higher rate than primary homes so many banks just don't want the exposure to this.