Hi Aubri,I did something similar but to ensure we were in compliance with local laws, I called the local county building and planning department and had a meeting with them to discuss my plans (this was done during the purchase process) to get approval.

Hi Dario, were you thinking of using Conv/DSCR to purchase 4+ multifamily?

However, I have to purchase a new home, which would require either selling the property or using a HELOC.

Can we use our current investment propeties or purchase another investment property purchase to at least slightly offset the tax hit?  

Are you talking about your purchase of another property in this statement or did you accept a 2nd offer to sell on the same house and mistaken say seller instead of buyer???

Purchase price: $45,000 Cash invested: $12,000 Sale price: $124,000 Old single family home I flipped with some structural repairs, sanding and refinishing original hardwoods, new kitchen, light bathroom update, paint inside and out, and other cosmetic touches

If purchased with financing and the security interest represented by the UCC was timely perfected, I would have a completely different opinion.

How would my purchase for the property affect that property tax? 

If it is light, a dscr purchase would be a great option as it is typically 30 year fixed and around 7% give or take depending on cash flow, credit, and leverage. 

They have made an offer to purchase.