After adding an extra bedroom and bathroom and rehabbing the house, I was well over budget.

Something about acting on unconfirmed information really doesn't sit well with me.

For me as well as the seller.First, you have to define Sub to financing.Do you mean the reckless kind where you overpay for a property, take over the financing and borrow from others to cover closing costs and holding costs when you have no money, no credit, no income, no reserves and can't tell a warranty deed from a deed of trust and you close on the kitchen counteror do you meanbuying below market value, already having a nice income, having reserves, using escrow and title, already understanding the due on sale clause, have done a lot of creative purchases and know when to use and when not to use creative finance and how to recover if something goes amiss?

Then connect with some hard money lenders (you can find some here on BP as well as some who are typing this right now) and connect with them to understand their product type, what they like to lend on and requirements.Hard money broker is all numbers game of making relationships and helping those that are looking for financing, it starts out slow but if you get with a few good borrowers and lenders it can be pretty decent money to be made.As an example we paid six figures last year to HM brokers. 

@Rene Hosman As a property manager with 20 years experience and a portfolio of 1,000+ single family homes, I can say concessions like reduced rent rarely work well for smaller landlords.

California's SB 721, known as the Balcony Inspection Law, requires multifamily property owners to inspect exterior elevated elements (EEEs) like balconies and decks.

>How well do log cabins in the area tend to perform in terms of bookings?

I connected well with him.

I'm considering investing in STR in Hawaii to diversify my investment portfolio (mainly for capital appreciation) as well as it being a regular vacation place for my family.

You debt to income (DTI) is calculated from your income as well as your liabilities.