The other option is to add a second layer of 3/4” t&g cdx ply on top of the subfloor if you have the ability to maintain critical heights with your subfloor (you can always undercut doors and use transition strips if needed).

I can take constructive criticism, I am constantly learning!

The infrastructure on any job is the most critical, and can be the most costly.

@Anthony Dooley  Ok we can debate this and you have two distinct asset class's you have historic non appreciating areas or areas that have actually deprecated.. and you have historic appreciating areas.in historic non deprecating areas homes are NOT 500K  they are maybe 100k.. so with rents at 1000 a month for a nice home even in those areas.. owners can pay them off in less than 10 years.. never to pay again and have a nice nest egg and security and not have to worry about moving or someone telling them what they can  and cannot do.. you cannot put dollars on that aspect.. in areas with known appreciation IE ( HISTORIC) there is no question that these homes over time will do more for a person at the end of a 30 year run than a few rentals.. you would need to be in the rental BUSINESS to do better..

There generally is a distinction if you operate an an employee.

investment go bad.So, I'm going to recommend learning how to do multi-family - especially commercial (and what the distinction is) - before jumping in with both feet.Time taken now can prevent big losses down the road.My $0.02...

I have too much to lose to not get this right & it’s critical that my interests are protected.

It's critical to avoid a situation where you have just purchased a second property, put significant money down, and now have to pay for a new furnace ($10k in my area) at the first property. 

@Felipe Ocampo The critical step in the 1031 process is to contract with a Qualified Intermediary (QI), like @Bill Exeter or @Dave Foster before you close on your sale. 

Location for these types of properties is critical.