Hi @Gil Canfu definitely there are many places in DFW where you can invest in a good rental property.I am not sure where you are at, but if self managed you should start in cities with good proximity to where you live.All the corridor between Princeton to Saginaw has good deals but there are many others things to consider as I mentioned previously.

.- They can rent by the room and self-manage to produce day 1 cash flow.- Many of these HCOL areas also have strict limitations on AirBnB or short-term rentals... that do not apply to owner-occupants - thus allowing for extreme cashflow potential for house-hackers.

Even better if you can work for a property manager or real estate compnay. 

What if A brings downpayment and B will manage it and minimal rennovations are needed.

  (700+ properties yielding 600K is less than 1K/property before expenses)   Lastly,  many property management companies refuse to manage S8 housing for the above reasons so good luck. 

I have two options 6.625% 30 year or 6.15% 15 yearI want to invest aggressively in the near future on more propertiesThe loan is only $110k and the monthly payment for 15 year is $563 and $750I will earn 2-3k a month in gross rental revenueThe property is in a declining population areaRecently rennovated, and all major things were relatively recently improved such as plumbing, the roof, a/c, electric, etc.Will require a lot of management as it is rent by the room so I may switch to a normal rental after 10 yearsI'm trying to find what will mathematically net me the most money in the long run.

If you have multifamily commercial loans, you will likely have to repay the loan in the near future instead of having the payments applied to the end of the loan. 

that we’ve learned in our 24 years, managing almost 700 doors across the Metro Detroit area, including almost 100 S8 leases:Class A Properties:Cashflow vs Appreciation: Typically, 3-5 years for positive cashflow, but you get highest relative rent & value appreciation.Vacancy Est: Historically 10%, 5% the more recent norm.Tenant Pool: Majority will have FICO scores of 680+ (roughly 5% probability of default), zero evictions in last 7 years.Class B Properties:Cashflow vs Appreciation: Typically, decent amount of relative rent & value appreciation.Vacancy Est: Historically 10%, 5% should be applied only if proper research done to support.Tenant Pool: Majority will have FICO scores of 620-680 (around 10% probability of default), some blemishes, but should have no evictions in last 5 yearsClass C Properties:Cashflow vs Appreciation: Typically, high cashflow and at the lower end of relative rent & value appreciation.

I have a commercial property with four retail spaces and three different businesses.

I would designing, renovating and managing the property.