If you're doing a rate and term refinance, there's typically not a seasoning period but again it's common for lenders to require it be rented first.If you're doing a DSCR cash out refi, it may not need to be rented first but you're probably paying a higher rate.Your best option is to call a loan broker you trust and go through the options based on your current situation.

I currently STR the two units with a plan to only STR one of them once I build the extra unit. 

Currently, I live in Hawaii, house hacking my own property, and am looking to expand into out-of-state long-term rentals.My goals now are to master the art of wholesaling, continue raising private money, and build a strong portfolio of long-term rentals.

I currently live in Phoenix, AZ but I'm looking to purchase land and put two prefab homes on it with my business partner.

@Oleksandr IvanovskiyRecommend exploring as many sources as possible to get referrals AND cross-reference them to get as much accurate information as possible.Check out NARPM.com, BP’s Property Manager Finder (BiggerPockets: The Real Estate Investing Social Network), etc.Also, encourage you to learn from the mistakes of others - by reading posts here on BiggerPockets about owners not having their expectations met by their current Property Management Company.

@Stephen MageeRecommend exploring as many sources as possible to get referrals AND cross-reference them to get as much accurate information as possible.Check out NARPM.com, BP’s Property Manager Finder (BiggerPockets: The Real Estate Investing Social Network), etc.Also, encourage you to learn from the mistakes of others - by reading posts here on BiggerPockets about owners not having their expectations met by their current Property Management Company.

Quote from @Lauren Lockett: I'm currently looking for an STR policy as well.

The refi, worth current rates will severely inhibit your cash flow. 

I have lived and worked real estate in both Fayetteville and Phoenix currently in Mesa.They are both great but the strategy is a little different.

Currently, the house looks like a warzone, with huge horizontal cracks, buckling, and crumbling drywall everywhere.