Do I draft the contract price for higher than the actual build price that would include our estimated profit (sell price) or would a separate agreement between the lot owner be sufficient enough that outlines the deal since we don't know the actual sell price until it goes to market?

However, I’m wondering if I need to engage an Attorney a borrower has missed a payment and it’s time to send a Notice of Default.Must the Notice of Default (NoD) be a letter sent certified mail or would an email sent to the borrower notifying them of non-payment be considered sufficient as a Notice of Default.

If their credit history is sufficiently long to generate a reasonable score for them then the credit score tells you the answer! 

Dedicate sufficient working capital to your business 6.

HI Stephen,You can always open HELOC or line of credit from your primary house or non primary house, assuming you have sufficient equity and income to qualify.

@Michelle SharkoAnswering questions in step by step fashion:- Is it a good thing to do or not is a personal finance decision and it depends on the person asking it, their risk tolerance which in part has to do with how this HELOC or line of credit works and how your personality fares relative to taking on new debt (a person more adverse to debt might have sufficient savings and temperament to pay down/back the debt versus a financially liberal person might get in over their skii's as).

Otherwise taking detailed videos and pictures for the contractor to get a good idea of budget should be sufficient to get a realistic budget. 

If your account does not have sufficient funds to acquire a property entirely, you can look into a non-recourse loan. 

You are off to a great start because you know you don't want to LEAVE your job to do real estate, you want real estate to be a sufficient side car to the job you are already crushing out of the gate.

If you can find smaller local banks in the market you pick they may have more unique products that they keep on their balance sheet or try and do the 5% down conventional on a 4-unit  FHA's self-sufficiency test applies to both 3 and 4-unit properties.