I also love this space because of how customizable the space is for tenants. 

Salesforce is VERY customizable

I usually use Innago since its relatively cheap and fairly customizable.

I appreciated that their pricing packages were customizable to what you need as a combination of their PM software, maintenance coordination, leasing services, and/or delinquency assistance.

Honestly I would choose a mortgage broker and let me explain you why.When you go to a bank or credit union the loan offer works for that institution and will offer you the rate they company offer, instead if you work with mortgage broker we have the ability to shop with over 100 and more institutions and shop for the best rates available, fast closing and customizable solutions, text me so i can give you my rates base on your credit score.

There are a ton of CRMs out there, but I personally love Zoho and how customizable it is

Luke, if you are looking for something customizable then I would definitely look at Dannys CRM solution.

We have it all available and customizable for you if you're more of a DIYer or wanting a full-service experience.  

Showmojo is MUCH more customizable, to the point of being very intimidating if you aren't a professional property manager.

I would talk to local credit units with military specialists to see if they have anything customizable for where you're at in the process.