I own a roofing company in Denver and a separate gutter company there too. 

This is what my company does for our clients..

Personal loans through the credit card companies can be approved and fund very quickly and my best rate is 7.9% so shop around as some are much higher.

There aren’t many residential development companies operating at this level, which reduces competition and risk.

Alternatively, once you have a full time job (or an employment contract), you should be able to qualify for a loan and utilize a Down Payment Assistance program.

Due to increased rates i did not refi so i did not get opportunity to see how an appraiser valued the half bathroom but the comps with same bathroom count had crazy valuation for the additional half bathroom.Taking under utilized space like a work area to add a br where the added br does not put you above the normal for the area can add value.Similar if a neighborhood is virtually all 3 br and 4 br properties and you find a 2 BR, it could be a value add to add the bedroom via new construction.  

After reading Brandon and Brian's book, The Multifamily Millionaire, Volume II: Create Generational Wealth by Investing in Large Multifamily Real Estate, I'm a bit puzzled as to if the GP's must have real estate experience, or if someone can connect enough professionals/companies on their team to execute successful investments.

REI investing for almost 20 years, owning a wealth management company for 22 years, suffice it to say there has been a lot go data/spreadsheeting/tax analysis/meeting with my team go into this overall decision to sell the entire portfolio at once.  

My company provides an all-in-one solution for clients.

Waivo is an example of such company.