Alexander Felice has a method of getting his repairs on the HUD when he closes, which is an interesting method that requires the right lender and title company to work.

Recently rehabbed so pretty low expectations of repairs in the near future.What ideas/methods would you use to maximize the return?

You will also want to understand common area maintenance, especially if you are targeting 3 units or more (lawn care, snow removal, cleaning and upkeep of common areas, etc) and understand the parking situation.

Can anyone recommend a reliable HVAC company to service (check out system) and possibly do duct cleaning?

These legal forms just basically involve the owner and the tenant verifying what is stated on the lease is what is actually happening and that the tenants are current on their rent- Once you take ownership and introduce yourself make sure you let the tenants know your preferred method of contact. 

The listing and marketing is fairly straightforward and they include ways in which you can directly divert fees, cleaning fee, directly to the contractors responsible for those operations. 

@Bob JonesHow many real properties have you sold under the installment method?

I would much rather do the BRRR method with a multi-family.

I put a new roof on it, cleaned it up and resurfaced the driveway.

Keep in mind that the lower down you have on a property the higher your interest rates will be, plus you will need to buy insurance for anything lower than 20% and that will hurt your cashflow.Research creative financing methods if you are serious about wanting this property.