If you can make payments, you're much better off with a regular loan.  

If I was going to go with my regular lender I was going to have to wait 6 months for the property to season before I did a cash out refi to pull my money back out of the property.  

I think they are right on par with a regular mortgage as far as timelines go. 

I also would only be able to get together a few thousand dollars in 2 months to cover closing costs, but not really any other money to 'put down'Do you advise, instead, that I do an FHA streamline refi, save my money (working my regular job) and in 2 years, try and refinance then (or sell and purchase another property)??

If course they charge a fee for each balance transfer just like a regular credit card. 

I know of one lead investor who returned 100% of investors' capital this way, and they still have their equity plus get regular (albeit reduced) distributions.

I would recommend the regular:1. get rid of all credit card debt if you have any.2. live frugally and save like crazy until you have that capital (25-50K?)

I'm not sure what else is required for these lines or if they just come straight in from the road with a cutoff like regular water mains.

I guess it depends on your long term strategy though.In terms of what exactly you can develop on your lot, I would look into the difference between adding ADUs vs adding regular residential units.

I'm work regularly from all over the Denver Metro area and deal with multiple builders so let me know if you want to chat.