To avoid going through the same poor experience, keep reading.Even if someone gives you a referral here, do NOT make the mistake of assuming that the PMC will meet your expectations, just because they met the expectations of the referral source.In our experience, the #1 mistake owners make when selecting a Property Management Company (PMC) is ASSUMING instead of CONFIRMING.It's often a case of not doing enough research, as they don't know what they don't know!

You don’t know what you don’t know.  

You also need to know if you will need to underpin the foundation as that can add up.

-Seller Expectations: Ensure the seller knows and understands what to expect regarding terms and timeline-many sellers are unfamiliar with seller financing.

At over 4000 sq ft, I'm surprised you won't be able to list for a much higher number to net a decent profit, but without knowing more specifics on the house and location, I am speculating here. 

Let us know if you’d like to talk further about this.

If you have any questions and/or concerns on mortgage financing, please let us know if we can be of any assistance. 

The only tidbit I feel important to put in here, unless you personally know your PM lender: if it seems too good to be true, it probably is. 

I know most BP note investors deal in SFR notes exclusively, or at least mostly, and for myself 98% of my note investments are notes secured by commercial properties.  

I'm surprised someone verbally told you you can convert back to a duplex and didn't tell you that you must get permits.from what you are describing it seems the town gave you a hard time because you didn't get permits, I don't know that you have any legal standing to go after the town,  again, I am not an attorney