I have seen a retrofitted single family home with a zoning change, which did require ADA compliant modifications; the same was not true for a large single family home with traditional zoning being operated similarly).

Doubling your money for installing a staircase and making some small floor plan modifications is an investors dream.   

One modification to #1 is that you do NOT need to purchase it OR rehab it with cash, and there are some compelling reasons not to, but that's a topic for a different day.This is the picture perfect BRRRR, and you'll come across this now and again. 

problem is, you don't have full view of the balance on the 1st specially if they did a loan modification and the modification is not recorded.  

I had a few exchanges with our realtor who offered modifications to our offer based on her expert knowledge of the area.

I'm no ADA pro, but I feel like I remember reading in multiple books that landlords HAVE to comply with requests like this (as long as they don't significantly alter the property/structure) but all modifications are at the expense of the tenant.

For several years we tried applying for a loan modification with Wells Fargo with no success.

Hi BP,Thinking of doing a driveway widening project for a single family home (no apron modification).

If it is a month-to-month lease, (written or verbal) you must honor it on a month-to-month basis, which means you can make modifications with 30 days notice (unless the lease says otherwise).

I ask the current tenant to notify me 60 days prior to lease end if they don't intend on extending the lease (always a clause in contract)2] The smaller the gap the better but totally depends on repairs/modifications/upgrades you intend on doing to the property before new tenant starts.