We are buy and hold investors out of Lowell MA with a few hundred units in MA and NH.

I’m new to wholesaling in Boston MA!

Does anyone know of any specific banks/institutions that will provide this service/are there any other strategies that I could use to obtain financing?

Furthermore some lenders have private or institutional funds that can offer (usually shorter duration) terms lower than market rates. - Priority processing and underwriting.

that's why I relocated the national institutional markets want florida and net migrations in miami dade is #1 of any county in the USA 

There are many more, but this might be a very fordable fix if you have a place for it. https://www.amazon.com/Cycling...Also, consider instituting laundry room hours and locking the door at night.

Now I know.Some cards will also allow you to go to your banking institution (or theirs) and the bank can do a cash advance up to the card limit into your banking account.

I don't believe me or my wife's income will be able to cover a full 80-90% LTV line of that amount but I want to be able to get a line as close as possible.Is there currently an institution that is recommended or any that should be avoided?

There are many institutional investors from Wall Street that buy single family homes.

When bidding on a foreclosed property in an online auction in Worcester, Massachusetts, besides financial analysis, you should conduct thorough due diligence by researching the property's title to check for any liens or unpaid taxes, inspecting the property's condition if possible, and understanding the local market trends.