I have found the same difficulties that you have found. 

Even when I run the numbers with a 25% down payment, I am having difficulty seeing anything that would even approach a positive cash flow using rough parameters like the 50% rule, except rarely in a class-D "warzone" neighborhood in which I'd be wary to go for a run even in daytime. 

It makes me worry that I would had difficulty finding a good tenant who would pay at medium rent and even worst s/he might not be able to pay or delay payment for months.

I am in the process of trying to finance my fourth rental property and having a difficulty finding a lander for the rental property mortgage who would finance less than 75k.

I guess my questions to you all here is how easy (or difficult) is it to get funding for flipping projects starting out with no experience?

Boy, had some difficulty with the links there...WaiverPamphlet

I will likely just adjust the offer to cover the $ amount the seller would receive in rent.There are two factors that concern me in the potential difficulty in getting the tenants to vacate the property, 1 is they are paying very cheap rent for the stats of the home and 2 the grow room obviously was constructed with considerable effort which I anticipate may influence them to dig their heels in and potentially squat illegally. 

Sorry to hear about your contractor difficulties, it seems that far too often folks in my industry struggle to perform, especially in the residential arena.I do have experience with new residential construction but very little in the world of rehabs.

The difficulty is relative I guess.

We filled it with zero difficulty and haven't had an issue with any other tenants of that property since.