You're competing against institutional investors (Brett Robinson to name one) that own a ton of them, market them very well and have this stuff down to a science. 

How do I find the list of financial institutions who do assumable loans?

I talk to national firms every day. the sentiment is overbuilt. maybe not for one person building one house but institutions are avoiding it now 

Probably for the better the city recently instituted a CAP on new licenses.

Its tough because my background is biochemistry, where the MBA moves me more in line into a business direction if anything on paper which is valued by most institutions so if I wanted to stay corporate ladder I think it is justified.

Hello Ezequiel, You can't find them because they don't exist here, at least not in an institutional way. 

The large institutional investors look at the comparable prices in an area (costs) and rents (income), they find the best properties that match the calculation then they go look at the property. 

Although this Molly Tennant approved not so sure about that I think that's just made up.. since she mentioned creative finance and certainly not recognized as an accredited institution.

I agree to repay any duplicative assistance as directed by the Agency.Nothing in this Agreement precludes the owner/agent from using any and all remedies available under law, including the institution of eviction proceedings against the Applicant, if the Applicant fails to pay any future rent due after the date of this award or otherwise violates the terms of tenancy.I reached out to my lawyer, who told me rudely that he wasnt contracted to advise on this, and i offered to pay, but never heard back.

If you are big time or institution investor yes …otherwise just Redfin is enough or even realtyhop, but I found Lance analysis is one depth more detailed than Redfin, amazing what small team can do, sometimes I ask him for small feature request.