@Max McQueen If you are looking to grow a portfolio you will need to build relationships with numerous lenders. First of all, banks will have legal lending limits which dictates how much the bank can lend to each particular borrower. Unless you have a tremendous track record and strong balance sheet, banks will be reluctant to lend up to their legal lending limit. Secondly, some banks will be more active and offer better terms in the construction and bridge debt space whereas others will consider take out financing and debt for stabilized properties a core competency. You will want to determine which lenders are best suited for different loan requests. Once you understand which banks offer the loan products that align with your borrowing needs you can spread your loan requests around.
Now for the more nuance part of the process. Currently banks are looking for borrowers to keep cash on deposit. This can make it difficult if you are working with numerous banks. Therefore you should determine whether this is a requirement and/or try to negotiate this out of any term sheet outside of perhaps keeping an operating account open. Also, depending on how active you intend on being, you will find the banks who offer the better construction financing terms tend to be the smaller banks with smaller legal lending limits. This means you will likely need to spend more effort finding more banks that can fill that void whereas you will want to find banks with higher legal lending limits for the take out and stabilized financing. The underwriting tends to be more similar deal to deal once you reach this point and once you are familiar with a particular banks procedures and underwriting policies it will streamline the process, especially if you find a bank who can take on numerous stabilized loans.
You will also find the banks you work (particularly the banks who offer the aggressive construction lending terms) will frequently be acquired or participate in mergers. It's the nature of the banking business, particularly now. Typically when this occurs "the gold standard" aggressive lender lending policies change overnight & the loan officers leave. You will build rapport with the loan officers more so than the bank and this will open up new banking relationships. Paying close attention to where loan officers are moving is an excellent way to determine which banks to work with. If you see a press report about a CRE team moving from one bank to another, it typically means the onboarding bank is aggressive with their lending. Meanwhile you probably want to shy away from the bank where loan officers leave.
While not a primary emphasis of your post, it was mentioned by others in their responses and wanted to suggest not to purchase real estate in your name solely because the loan terms are better. Owning real estate where the deed holder is an LLC (if done correctly) is a powerful asset protection tool. You will also find your CRE loan terms will improve as does your track record and balance sheet.