With my desired duration of paying them for 15 years, The investor earns their money back, plus an ROI of $45,860.

Is it better to have a job or business that is doing well, then funnel the money into larger projects, if my desire is to be one of the main GP for like 33-100 unit multifamily projects?

Each lender will be willing to provide a ballpark rate quote with some simple info such as FICO score, property type, location, term, and desired LTV.

Class A apartments have numerous amenities, professional management, and sit in desirable neighborhoods.

So I get your hesitation to be too demanding and your desire for the problems to go away as fast as they can, however since you have NO property manager ( I don't use one either), it is incumbent that you take a more ACTIVE approach with management of your property.Let's review your situation.  1st time leak occurred, you sent a plumber over to find the problem.  

My name is Paul Hearn, and I am a new real estate agent in the Memphis area with a burning desire to work with investors that are wanting to grow their portfolios in Memphis and the surrounding areas.

Second link is a similar size, albeit 10 year older home, in Setagaya Ward (a very desirable neighborhood), but still "only $1.2M. https://www.homes.co.jp/kodate...https://www.homes.co.jp/kodate...(2) Age. 

Property ClassProperties are categorized by class, impacting their quality, condition, and investment profile:Class A: High-end, newly built, prime locations, attractive to institutional investors.Class B: Good quality, older than Class A, with minor deferred maintenance.Class C: Older properties with dated amenities, but value-add opportunities exist.Class D: Distressed properties in less desirable locations with high risks but potential for significant improvement.4.

If you ever have the desire to sell please let me know, Best of luck! 

Personally I think there are good loans out there but people look for the "perfect" loan that fits their buy box and meets a desired return - which the return is going to be based on risk.So for many you cannot have your cake and eat it too. thoughts?