Would it be a good idea to refinance and get access to that equity, or don’t and keep the favorable interest rate?

Then you have a whole new house with additional equity you created perhaps then you can get a heloc on that home if you cannot refinance it.Talk to lenders about your plan before so you can make sure it will work with you.

You are betting too much on the refinance portion if you try to BRRRR with hard money.

Typically hard money lenders will lend a maximum of 70% of the ARV so if you are below you will have more flexibility on the initial loan and the refinance (better terms or higher cash out) and of course more profit if you sell

Would you consider doing a cash-out refinance into a 30-year DSCR loan, or would you opt for a line of credit instead? 

Looking to refinance in 3-6 months and then invest into another MFR.

Some call a line of credit a bridge but its not its a open end mortgage and the lien is in second position.If you have any questions or want more info on the above types of scenarios feel free to reach out or send me an email.What you want in this current market is a cash out refinance unless you are trying to sell a primary or vacation home.

Secondly all DSCR should allow you to close in the LLC without a rate hit.If you are going to take out any cash through a refinance in less than 1-2 years be careful of how many years they try and hit you with the Pre-Payment penalty. 

Then in 6 months refinance into a conventional loan and you can exit the property legally. 

If it's in your name you can look into the potential for a HELOC or potentially refinance to pull out some of the equity you've created, but you'll need to do the math to see if you're payments will increase based on the new loan terms.