I have been trained in Structural, Electric and Plumbing.

Should I just loan the funds to the business at a certain interest rate, then that gets paid off first before we divide up the profits 50/50 or is there some other method that makes more sense?

Learn how to be a landlord and how to fix stuff around the house- basic plumbing, electrical, etc.

Can you share with me some of your thoughts and experiences using this method? 

Therefore, your most time efficient method might be to send your listed expenses to the seller's agent or closing attorney and announce in clear words that you will sue if you don't get fully reimbursed and the EM released to you in 48 hours.

If you're afraid of the bank finding out when the title transfers - there is one method that is unique- but I know will work ( I recently did it myself for another reason - with existing tenants).

I'm currently living out of Waipahu Hi, and working full time as a plumber for a local plumbing company.

In the mean while, I'm saving my regular income which I would have been using to pay my regular monthly expenses.So by the time I go to buy the home I'll have enough "saved" to cover my DP and reserve requirements, I'll have used up all the funds from the personal loan and I'll have about $24k remaining balance on my personal loan (which I'll pay off with my reserves after closing on the home).Does this reasoning make sense to any of you lenders and would it be an accepted method of showing proof of funds?

Correction - In MN, when it comes to rehabbing your residential properties, you are only required to have a license for mech'l, elec'l, and plumbing work.  

I work for a firm that does Mechanical/Electrical/Plumbing Engineering work, primarily for architects and developers.