They remain durable for a very long time.We have a decent in energy bill after installing TPO, our roofer told us TPO is very energy efficient as they are perfect insulators, TPO are made from recycled plastic materials.If you want to try TPO roofing go with an expert roofer offering good warranty and Insurance.Our previous garage was TPO roofed by an Industrial roofer named as Empire Roofing Corporation.

Rental properties have a higher standard for dryer venting,, most city inspectors will require you to have smooth sheet metal duct, not any of the accordion type dryer vent hoses made of plastic or flexi metal.. and must be vented outside..I'd call city talk to inspection department and find out the regulations.. as your currently "thinking" about adding a dryer... honestly we had a huge issue with trying to install a washer and dryer in a 4 plex,, the city inspector would not permit use because we didn't have a egress window in the basement for an additional way to exit,, code required 2 exits out of basement to have a washer or dryer for use.. basically the basement was off limits. because of no 2nd point of exit we couldn't even let tenant's down there so we had to lock it off. 

My first (stressful) flip :)The house is a 1,875sqft 4br/2ba with a front yard, back yard, carport, porch and back patio with built-in firepit. 

Additionally, we installed a new sewer lateral, water heaters, windows, light fixtures and outlets, roof (including facia, soffit, and gutters), blow in attic insulation, patio, sidewalks, parking pad and privacy fence.

Additionally, we installed a new sewer lateral, water heaters, windows, light fixtures & outlets, roof (including facia, soffit, & gutters), blow in attic insulation, patio, sidewalks, parking pad & privacy fence.

Each unit also has a small backyard and private patio on the back side of the property.

@Robert Kough I co-own 2 single family homes and 1 patio home in Sedona, AZ with my mom.

Don't allow her to get back in.Is there an attic access in a patio or porch area.?

Put in laminate, Kitchen Cabinets, Vanities, Concrete patio, Light Fixtures, Water fixtures What was the outcome?

They are by far the cheapest where I invest to do this because they like to crawl on the plastic instead of the dirt.