If you are using any conventional product it will be a 6 moth seasoning.  

Some conventional lenders won’t finance it either depending on how bad it is.

With that in mind, myself and my two business partners (all from Aus) are looking to purchase buy and hold residential investment properties in the 200-250k range, using conventional finance.- Are you investing in the Columbus market?

We did a conventional loan with 20% down.  

Some owners just do not charge for the patio and let the tenants have it as a bonus.

How much do they charge?

(Loan program, term, credit score, etc) just for hypotheticals, say your looking at a 30 year conventional on your primary residence with 720 credit, rate could be ~4.75-5.125%  FHA is typically a little lower. 

They want 10% interest, which is about 4% higher than what I can get with my conventional bank. 

First property I bought was an undervalued house hack double.Purchased for 70k with an 80 conventional loan.ARV 160kI then took an 80k HELOC.Next I bought a single fam to move into using another conventional mortgage with 20% down coming from the HELOC.After all this I then discovered the BRRRR strategy.

Also consider longer term conventional financing with lower interest rates.