Those are more properly called a pre-qualification and aren't worth the paper they're printed on. 

With a proper list here you can see how long each property has been delinquent as well as their total amounts due.Tax sale List - This is only a list of properties who have been sold at the tax sale or are on a list to have their taxes sold, usually constructed by the county or their tax sale servicing company like SRI. 

I am trying to find the standardization for what a lender should be properly using to calculate net income and thus freeing up DTI.

You have a right to enter as long as you give proper notice, and there is no requirement that he be present.this could be a very innocent request from the tenant but it could also be an indication something is wrong.

If they are already month to month, just give them proper notice on the rent increase and leave them month to month.

And my husband installs the hose himself properly with Teflon tape or paste.  

However, if your property manager is not adhering to your written agreement then it may be time to part ways.Your tenant is on a month-to-month and they are running a business in a residential home. my recommendation would be to contact the tenant and let them know you will only allow them to continue running the business if they take on ordinary maintenance (e.g. they pay the first $500 on all maintenance issues), provide proof their business is properly licensed and registered with the city, county, or state, and that they have the appropriate liability Insurance in place (at least $1 million) with you named as the additional insured or additional interest.

But if you need them to stay in escrow to be able to budget properly, then leave them in.

I only charge this little because the pair I rent was left behind from an eviction and I have rented them for 3 years with only $120 in repairs, so they have paid me dividends many times over.The apartment complexes in the area get about $125/month.

They can make sure your money is properly secured to the property.