You could easily get 75-80% LTC on the cabin build meaning you'd need about $200,000-$250,000 CASH, to complete the project.Take 200k out of the FL house, build, rent, refi & payoff the FL property again would be my best bet about going about it.

In my Chart of Accounts we list each account separately and then each one is easily listed on my P&L.

I could very easily rent the property again but my plan was to sell it and use that cash for the next investment.  

My advice is if you cant easily afford it and you have to put it on a CC.. rethink that.. networking is great but there are all sorts of meetups and REIA clubs that are basically free that have speakers come in and talk on all these subjects. 

You will need to factor in rehab costs, which could easily eat up another $50-75k depending on the condition.

Is there any way to easily find out what areas around detroit are what class?

. :-) Even if you win the war, loosing the battle can easily wipe out all your profits and more.Think about that recent CA AirBnB case where the lady was in the guest house for almost 2 years with no rent?  

You could easily buy land that is zoned for multi-family and find a lot where you could build 4-8 townhomes.

I use google drive for all my scanned business files, so I can easily upload my receipts for transactions/expenses. 

.-  This is a product which is easily raised, harvested and milled in Belize.