Recently, the tenant had a rat problem, need the landscaper to clear the foundation of the building so the pest control people can see where rats enter.

I grew up in Hamburg, ventured out west for eight years and moved back to WNY up in Wilson in 2017.

Though home prices appear to be out of control, note that rent rates have also risen substantially also.  

Breaking these rules will threaten the tax-advantaged status of the IRA investments and could cost the investor a lot of money, so the key guidelines should be reviewed.An IRA may not have a “transaction” with or for the benefit of the following “disqualified persons”:The IRA owner.The owner's spouse.The owner's ascendants (parents and grandparents).The owner's direct descendants (children and grandchildren).The owner's direct descendants' spouses.Certain fiduciaries (CPAs, attorneys, financial planners, etc.).Retirement plans held by disqualified persons.Any entity that these persons own or control.

I already am paying them for pest control, but they recommended sealing gaps in the home, installing a plastic barrier, and doing a termite chemical service.

Unless your lease specifies that you use poison control and that any risk to a person's pet is their responsibility, I don't think you can ethically (and possibly legally) create a toxic situation for pets that you've allowed in your units. 

Once you scale larger and your cash flow and the volume of work is there then you can higher in-house something you want to more control of but don't want to do yourself. 

Too much risk during a project of this size.You need to take control. 

Unless your profit margins are large you will be losing money and a peace of mind, won't have any control over the processes, and probably not be very high on a prop. manager's list. headache no mater how you slice it.

Combined use, condos, 1.5M flips, etc.For cash flow, you need C and D areas unless you have a lot of cash (B areas) and all you need is tax shelter and inflation control.