A 50% LTV on a $120K house at 7%, 30 year Am results in a $400/mo interest payment.The cashflow on your existing duplex goes to $1,000 per month, but now you can buy another just like it so yoru cashflow goes to $2,000 per month.  

Hello,I'm looking for advice on my offer strategy for a house on the market I want to purchase.

House was built in 2005 (I lived in this house and rented it out when I moved back to California). 

Incorporating a washer-dryer hookup in the main house could be advantageous.This addition not only increases the convenience for potential renters but also adds value to the property itself.

You can't just walk into the tenant's house to do your laundry.

Then you own the LLC and can transfer the property into it.If you transfer the property into that LLC the way it is then technically you just gave your friend ownership of the house proportional to his ownership of the LLC.I'm not an attorney, so take that with a grain of salt.

This means that your permanent residence is excluded (except if you are doing a house hack in which the part that is rented out is eligible for cost segregation).

@Joe Villeneuve around 300K of equity in the houseSell the house, take the equity, spend it or use it on your next house where you are moving to. 

I have concepts that I hope to expand on, strategies that stick out to me when reading and podcast so far are buy and hold properties, the BRRRR method, and house hacking.

You've probably seen some of these before - basically, it's a visual representation of all of the materials that you'll be using for each room inside of the house.