I buy materials from specific distributors, good product, warranty, net billing etc.I think using a reputable general contractor is best for most people, volume of flips is generally the focus (plus margins) Christian's comment said it best.

I use a product called Baselane, which combines rent collection with banking and accounting. 

These are much needed products with more active management and the revenue shows. 

Personally, this month is on pace for my largest production ever with $2.585M set to close this June.

Definitely check in with @Joseph Chiofalo for Jumbo second home and investor loan products, we just had an unbeatable rate and appraisal waiver here on the coast. 

there are a lot of loan products available.  

@John Underwood "I would add this to the lease about starter supplies including cleaning products."

You can earn from the many contract set asides, tax incentives and specialized financing  that exists only because of your tenant.My funding group (DTRT FUNDING & Consulting - Do The Right Thing) funds what we call the path.. all the varisous companies and non profits that can benefit from the wide range of tax, contract setasides, funding and income generaded by that trnant becomming a productive and independant person.Would love to talk 

I wouldn't spin your wheels.I'd love to connect and see what I can do for you on a 5-9 Unit DSCR product.

I've been searching for quite a while today and the only thing that looks promising is called water hero and its a kickstarter campaign that was funded but the product is still under development.