Would it be best to use the bank I have now for the primary mortgage?

I may be able to negotiate things differently.

Hello BP family.I am currently under contract for my 1st primary home.

I have been fully consumed in all the BP podcasts and it pushed me to turn my primary residence in Wilmington into a long term rental. 

HUD does not let the tenant pay the difference and as a landlord you cannot accept it.

I have a HELOC on my primary residence and access to a little savings. 

Purchase price: $612,500 Cash invested: $20,000 Primary residence turned into first rental.

Just to challenge you a little - can you house hack, or are you already situated in a primary that you own?  

My personal investing goals are almost always different from my client's goals, and at every turning point in a transaction, I do my best to respect that line and not try to inject personal opinions.  

That way you can use that 2% to do a rate buy down to ensure a better cash flow.If you are buying it as a Primary owner occupancy I would ask for 3-4% seller credit to cover rate buy down and a portion of closing costs.