Since part of your property is a rental, I believe a portion of your mortgage interest should be a tax deduction unlike your other debt.

It is a tax write off.

If you paid under $230k, you’d save $30k in federal capital gains taxes and maybe another $15k or more in state income taxes.

Be mindful of short-term capital gains tax, as profits from flips held for less than a year are taxed as ordinary income, and frequent flipping may result in self-employment taxes.While profits from flips do not qualify for 1031 exchanges (since flips are considered inventory, not investment properties), you can minimize your tax burden by deducting allowable expenses like renovation costs, loan interest, and holding expenses.If you're considering diversifying into rentals, explore opportunities to benefit from long-term tax advantages such as depreciation and lower long-term capital gains rates.

You'll likely want to evaluate the investment with UDFI tax figured in.The Solo 401k trust would make the payments to the seller/lender and would also pay for any investment-related expenses.

I will give you my numbers since we are 3 years into Velocity Banking.Home was purchased at $410k.Interest rate: 3.125%30 year termMortgage payment is around $1950 (includes insurance and property tax)HELOC: 8.25% Variable rate - current rateCredit Limit: $97kLet's say I made $10k a month and our expenses were $6k each month including the mortgage.

I also want to learn about purchasing properties with tax liens / bankruptcies / foreclosures.1.

You did purchase the property in one tax year and are selling it in another tax year which satisfies one of the court rulings. 

Did you have taxable income that could’ve been reduced utilizing tax strategies?

The tax advantages of buying/holding gas stations are pretty great.Many of the components of gas stations including pumps, tanks, external parking areas, and other equipment are classified as either 5 or 15 year property so you can bonus depreciate a lot of it (minus the land value) and get significant deductions in year 1.With the 2025 bonus depreciation rate at 40%, a $1 million gas station acquisition could still lead to $100K+ in year 1 deductions depending on the specifics of your deal.