Both Podio and Zoho are highly customizable, and this way you can easily tailor them to suit your needs.

Any ideas on a customizable direct booking calendar and invoicing web site add ons would be appreciated.  

When it comes to enterprise-level software for accounting and asset management, especially in the private lending space, there are a few options you might want to consider.In a nutshell, some popular alternatives to Yardi (which, as you mentioned, is more geared towards large-scale multifamily properties) are:MRI Software: MRI is a pretty versatile and customizable software solution that caters to various real estate sectors, including private lending.

And the construction methods can so easily make them stronger, tighter, customizable, and cheaper compared to a custom.

I think part of the issue was I was getting quoted for a fully customizable, hard coded web application, and I am just not there yet.

Look for a solution that offers recurring payment options, email and text reminders, flexible line items, and customizable late fees.

Podio is very customizable so it serves as the "central hub" or "interface" and creates the relationships between items.

The reporting for financial items is very robust and highly customizable.

Cozy’s application isn’t currently customizable, although you could request supplemental information outside of Cozy as well.

It is highly customizable, has a great mobile app and the basic Free version suits our needs at this point.