I don't know the numbers on your property, so I'll create a hypothetical:Assume your principal and interest on a $300k loan is $1,263.You're sitting on the potential to get $155k (tax free, btw), but the rate will be 7.5%, taking you're principal and interest to $2,100.Yes, it's $900/month more, but you have $155k of tax free money in the bank.

I've personally worked with a handful of "investor-friendly" lenders, primarily on DSCR loans in recent years, and each time I've run into significant delays, lack of transparency about the process, have been fed the requirements in a piecemeal fashion (every few days there's a new random request rather than having it all organized from the start), and have even run into lenders who were substantially misinformed about the real estate industry or the laws that govern it on both a local and federal level.I think there should be a better site to encourage accountability by tracking how long it actually takes each lender to close their loans on average, and what unexpected hurdles investors encounter when trying to work with them.I can't seem to find such a site.

.- thanks   1) on the  1st mtg  refinance proposal at 4.1%  -  sounds like they are  offering you the  higher note  rate  so they can  absorb  some of the closing costs .....make sure you get a loan estimate and  review the details about them picking up all costs  ( titel / escrow / recording /  credit  etc ...)    2)  also  check the  index / margin and  caps   on the new  loan  offer   and  compare these to the  present loan  details  ...if you  keep this loan past the   rate/ payment  adjustment  period - you want to make sure  you  are aware of  how the ARM  can  change   3) the offer  to  do  " free  "  refinances in the  future  is  no  big deal  beacuse  any lender  can offer this  via  a higher rate  to  absorb  all costs 

Fastest option would be to sell it to an investor, and they either pay cash for it OR if it would qualify for a DSCR loan (for rentals) it can close in 25-30 days. 

@Kevin ChubetKevin does this STR tax strategy also applies if you acquired the property as a second home / vacation home using the 10% down loan?

How long it takes to be financially ready is different for everyone.

I used to use Stessa for financials....but it broke with the more properties and more accounts I linked to it. 

I'm planning to pursue a conventional loan with 10% down payment.

I don't need it to get a building loan because I'm building with cash.

There are also several hard money lenders as well as lenders that specialize in DSCR or Non QM loan products too.