I know that is a long pay back period but don't plan on selling anytime soon, plus you never know what nat gas prices will do. 

Hello,I'm looking to sell my property and do a 1031 exchange. 

When you live in that duplex for 2 years and then sell you'll be able to take 50% of the profit tax free (the allocation for the side you lived in). 

I told her no and then she told me to sell my crypto, sell my stocks, apply for credit cards and offered me financing.

You could also get a line of credit for about $150k (you should be able to borrow 75% of the value.)The reason I suggest this is…1) you save $40-$60k in selling costs. 2) you have a lower blended interest rate (2/3rds at 3.25% and 1/3rd at 7 or 8% instead of the whole $500k at 7 or 8%) saving you another $1k/mo in interest. 3) you only pay interest on that $150k when you actually use it, not from day 1  Unless you hate this property, or want to buy something you can’t afford without selling, that would be my plan.

If the business sells (it’s currently listed), the rent payments would stop, but I’d still own the property as an asset.

Investing in single-family residence fix-and-flip projects in New York involves purchasing distressed or undervalued single-family homes, renovating them, and selling them at a profit.

It would be like if someone prepared to sell by painting to create fresh visual interest, but chose fuscia and lime green...those colors would certainly catch the eye but I'd never claim that they overdid the curb appeal by painting with too much visual interest.

Is your client building to rent, or build to sell? 

Selling the rentals via installment sales could also spread out tax liability.This post does not create a CPA-Client relationship.