Personally updated and furnished all units, increasing the income on the property.What was the outcome?

Does it improve the roof itself, or does it bring increased maintenance.

Then don't rehab for zero COC return.But if you can spend $3000 on the lite rehab and increase rent from $1000 to $1050 then you'd gain $50 per month.50 x 12 = $600 more annually because you rehabbed.600 / 3000 = .2 or a 20% cash on cash return! 

He threatened me if I'm not paying him he gonna put lien on my property, I've never encounter these thing in my whole life...He seems very cold blood and likes to take his client to court or put lien on the property, looks like he had done these stuff many times in his career...I just don't suggest you to work with him for the below reasons:1.He is never willing to communicate about the project progress and he just notify you that you have to pay for next-phase otherwise he will STOP the work and take all the stuff out2.He will never take responsibility on warranty or the stuff he had done, if you ask, that is all your fault, and you have to pay your own bills3.Finally if nothing of these lightly threaten works, he will say: "I will give you 3 days, if you don't pay me, I will put lien on your property, I will take you to the court"I never done business into this situation in my whole life, but it looks like that's how Robert Mincey makes money and if you work with him, you will probably end up like me with tons of sleepless nights...If there are any chance, in the future I will post my whole experience while working with him.Hope this helps!

Did we see interest rates increase at a rate we've never seen in the last 40+ years?

My current company is AllState, and they increased their rates by 100%, so I'm looking elsewhere.

If you won’t hire a PM I’d send something like: You’ve been a great tenant but because of market conditions the rent will be increasing to $x at the end of your current lease.

(Then you have zero vacancy, your business controls its rent increases, etc.)Rent out the garage to another small company. 

Make sure your listing is well optimized you can also do a little tweaking to your listing daily to get on the algorithm, make sure your photos are eye catching and well arranged, you can send out your link to friends and families and ask them to add it to their wishlist.In terms of pricing you always want to start low to get some bookings and ratings then slowly increase your price.I wish you the best in your business.

I am an investor and realtor as well but I focus mostly on fixing up distressed properties to increase value and grow the equity and that usually allows better cashflow also.