I can estimate most of the cost, taxes, insurance, utilities, PM fees, and such and I know that should be provided in the expenses but when it comes to the actual maintenance of the property, what strategy do you normally use?

The best thing to do is contact the county tax assessor explain the estimated purchase price and ask how this will impact the annual property taxes.

So, I'm estimating your monthly ROI will be very low, 2-5%.

Full time job = $4550 monthly; Part time job = ~$2400-$3200 monthlyLittle Rock, ARZillow estimated my property at $358,000. 

Your own estimates.

You can type in the properties address and it pulls data from airbnb and other short term site to give you from what I've read a pretty accurate estimation of Occupancy rates and income.

So the increase in revenue probably ends up being 5-6%.Maybe I am over estimating the cost though.

I don't know if I did it right, because I prefer NOT to get a traditional loan for my next property.... and I don't know how to estimate (or even GET) private lender loans.My buy box is;- Something I can use for long term rental AND MTRs.- Less than $25K in rehab- Quick rental potential (<3 months rehab).- Low crime, low foot traffic- Access to restaurants, grocery and job (hospital, university, denver tech center, denver downtown)- COC ~5-6%My preferred method to buy is Sub-To, so I would like sellers (and agents) who are ready and willing to consider this.

As a landlord, I verified the work needed by pictures being sent, and arranged for a contractor to go in person who is licensed and insured to give an estimate for the work stating to management company this would likely have to come out of a security deposit.The management company was initially asked prior to me arranging this appointment with contractor, to have someone professional quote the damage, and they disregarded my wishes and without my knowledge, or notifying me, granted consent to the tenant to fix the door " in any way they see fit, and to attempt to fix it themselves to the degree of their liking." 

Look for good rental demand.Repairs – Estimate what it’ll cost to fix anything.Plan – Decide if you’ll rent, sell, or hold the property.Biggerpockets has a lot of different calculators as well to help you out: https://www.biggerpockets.com/investment-calculatorsYou got this!