I have compiled some templates to help me formulate my plan. 

You need to look at the sale of duplexes close by to start formulating what they go for, then perhaps add a price adjustment upwards for price/condition, assuming other duplexes are old.

I’m definitely interested in formulating this exact plan and very soon.

This way, you can know if something may prevent the seller from selling and educate yourself so you can formulate a plan for how it can be addressed. 

They are typically formulated under an LLC and then the LLC purchases the property and splits the equity between the investors and the sponsor based upon how much was invested.

The event you're formulating would be revolutionary and I can't wait for this to happen.Semper Fi

You will be influenced by today's financials needs (greed or fear) and instead should formulate a policy for accepting tenants beforehand.

However, I think being able to get a feel for what motivates the seller is very important and helps to formulate a deal in which both sides win.

The 70% formula is a bit out of date and really not specific enough when it comes down to it.I think you're better off itemizing each expense and formulating your offer off of that.

If they ask why you keep the late fees and you hem and haw and try to formulate an answer, you'll look unprofessional and they'll go somewhere else.Sending the owner statement for review before payment is only going to increase your workload.