Trouble is, in our Marital Settlement Agreement, he demands language entitling him to claim ALL associated mortgage interest deductions on the property.If I allow this language to stand in the MSA, and if I later simply claim the mortgage deduction on my own taxes (given that I live here and he does not, and I am responsible for all payments) 1) Would the IRS have jurisdiction to decide who claimed the deduction since he would also be claiming the same deduction? 

Make sure your lease clearly specifies how these payments are being defined.It seems he grabbed some money from from a marital account and is trying to pay off somethings.

I am not familiar with Ohio, but in California there is transmutation, which is the transformation of property from separate to marital.

The Lease will be terminated 30 days after the due date of the next Rent payment.Tenant Assumes Responsibility for the following Routine Maintenance: Granite and stainless steel appliances if applicable.Yard Maintenance (mowing, edging, feeding, seeding, maintaining sprinklers) but not all inclusiveTenant responsible smoke/CO detector, changing all the batteries and alerting (by written notice with a written response signifying the letter has been received) the landlord to when they are no longer in working orders.Tenants are responsible for all windows.

Neither of those are discriminatory since they don't address marital status or another protected class.

Rules don't see size, color, sex, family status, marital status, sexual orientation.

Once I got into Mar it would be $99 rent.

These deals signify that, for motivated buyers, financing costs are not as important a consideration as the location or a strategic rationale to own a property in a preferred market.On the other side of the spectrum, hotels that relied on downtown transient demand and were hit hard over the past two years are seeing some interest, as well.

However a much higher % are selling below list price, signifying to me that prices have peaked and will start to turn. 5+ bedroom homes are down about 10% in price however. 

A formal application process is part of being a renter just like it is buying a house and his refusal to follow simple and normal processes may have something to do with his recent change in marital status.