My partner and I want to find a bank to open a checking, and obviously build a relationship for later for any financial needs we may have.

lol we are talking the same, lets say we do some input statistic analysis ( i did it before ), so in 2009 the mortgage debt with typical husband and wife working is like 29% ; now that number is going as much as 44% in some cities. also our home price is created using auction systems, if there'e 100 houses in one zip code, the pricing discovery in created by the last 3-5 home purchasers, which indicate 95% of other folks does not necessarily able to purchase home or do mortgage with current rate.Which cause a problem, one household either need to maintain job that can continously paying the mortgage and/or the loyalty of husband and wife is a MUST LOL Having said that, to maintain 1.5 mil homes in bay area for example, husband and wife should not divorce for 30 years at least.But for 150k house in Ohio, the husband can divorce their wife anytime while maintain the mortgage payment LOLHaving said that, getting divorce is very suicidal for financial.but also creating different effect, for single guy, there's almost no way they can purchase home, unless they're cardiologist or any other high income earner LOL (this example is just for fun).In our area the home supply is coming from two sources mainly: people going retirement and want to cash out or separation in relationship LOLGetting separation is very expensive especially if you born in 1970/1980/1990s, I would even argue the moment you are married-->single thus you become the renter class again LOL

So, when you say they not do report on your personal credit report I guess you are talking about non-recourse loans? 

Ana,Based on experience and this market me personally I would avoid a HELOC for a few reasons.

I'm looking for events that attract a good mix of real estate investors, agents, and other professionals where I can showcase our lending solutions and build relationships.

Fingers crossed in 7 years I have not had to test my coverage, but in the area of my rentals a golf cart is expected with the rental.When they crash into someone else, did that person sign the waiver too ?

My PM used to have a person who did the payments and every year around Feb, she'd send out an annual statement for your taxes showing how much you got in rent, spent in repairs and management fees. 

Rent the other side of the duplex to a person you then employ as a full-time (or part-time) nanny.

Note ADU addition in a MF zoned area may be comped with a duplex but I personally think this is wrong as a SFH with ADU is not a duplex.- it is cheaper to buy a property with an existing ADU than adding one   In addition you would receive RE purchase financing.  

Lastly, our DTI is maxed out per every lender we've spoken to recently as all the properties are mortgaged in our personal name.