You would need to let them know you are 2nd lender and want to pay the loan off.

(Insurance, Loans, Zoning, STR, ADU's, ??

So when the bank requires insurance for the loan amount.. that will work generally.. 

FHA loan through my mortgage broker associates.

A lot of the owner occupy loans require you to live there for at least a year, so it's not forever. 

Doing a 75% 1st mortgage and 15% heloc or heloan would likely give you better cost of funds all around.If this is an investment property, you can do 80% cash out refi using NonQM loans such as DSCR loans, but at a higher cost/rate than if you stick with 75% loan to value. 

Quote from @Arshiya Taami: I am planning on purchasing a profitable business with its real estate included in florida and the dscr is 1.85. the problem is im just short of 600k for the down payment. that being said, can anyone provide me any reputable loan companies that will offer bridge loans and what their requirements are. thank you in advance! 

I would get an attorney or title company involved to create your loan documents to ensure they comply with the law and cover all the aspects you need.Another method that is likely your best bet to take on investors is to create a joint venture (JV).

Make sure you talk to a Banker or Loan officer that is well versed in both SE (Self Employed) income and also Non/QM programs.One tip I will give you as a Banker is open up a "Business Checking account" and for the next 12 months pay "Everything" out of that account. 

And your point about a lingering HM loan makes sense.