The collateral makes a difference.2. 

I'd send out 500 at a time, using a different mailer/method weekly.

Although whichever option you go with make sure you're also thinking about the long-term property value and what makes the most sense vs trying different angles now that negatively impact future resale/property values down the line. 

Connecting with local GC groups in your area will help you connect with subcontractors, find out tips and tricks of the trade in your local area (since all areas and their real estate differ slightly).Also, have you considered the motivation behind building a brand-new duplex versus finding one on the market?

Rent in the neighborhood is $895 for a 2 bedroom, 1 and 1/2 bathroom, so for 4 units it will total up to $3,580 ($1,073 difference).

Probably going to be a check.Smart contractors are starting to understand that convenience matters to customers and being able to take different methods of payment can help them collect their money.

If someone came to me looking for money and was trying to invest across multiple asset classes as different as the ones you are interested in, that would leave me extremely weary.

Pyment is $1,054, but $625 is interest.If you sold current house and bought new one with same mortgage amount, but current interest rate of 7%, the payment would be $1,663, interest amount $1,458.So, the interest cost difference would be $833 month!

I'll settle for a variation of this and give a little, but I simply pass on PMs who hand me a term sheet with 10+ different types of fees.

Pinellas county has all kids of different rules depending on exactly where you are.