I have experience in web design and was wondering if I should start offering custom websites/marketing funnels to wholesalers & investors so they can build their list easily, or bring in new leads easier.Here are a few designs I put together, let me know what you think CASH-BUYER LIST DESIGN:LEASE OPTIONS:Do you think other investors would be into this service?

If it is zoned duplex you can easily convert it back check show your plans to the building dept for approval and advice 

It's just outside in the bedroom(but easily fixed)I realize that all these things COULD play a part, but which do you guys think is the biggest reasons?

The cash flow alone would be a 60% ROI and that doesn't include equity growth by mortgage pay down and appreciation which could easily push your true ROI to 80% or 100%. 

Although the loan will allow for 10% contingency that is very easily blown out of the water by a single unforeseen issue and it's a nightmare trying to get through it.Let me know if you'd like a couple of names of people who have experience with the program.

That said, you can easily live for free while your tenants pay your PITI and pay off your property for you. 

I don't know south FL very well but I would think you could find something easily.

Is this something that can be determined/estimated easily and accurately before talking to the seller?

I'm glad you were able to rent your 4/2 easily, good luck with renting the 1/1!

It is a second job. with all that said you  have holding costs every month. if the loan pmt is 400 and it took me 6 months. that's $2400 holding costs. not to mention utilities, taxes and insurance could easily add another 2000.